Nearest named color: Butter Yellow
#E9FB91
#E9FB91
Nearest named
Butter Yellow
Family
Green
Lightness
95.2%
Chroma
0.132
Hue angle
116.9°
Temperature
Warm
Contrast on white
1.12:1 · Fail
Contrast on black
16.52:1 · AAA
Web-safe
#FFFF99
CSS oklch()
95% 0.13 117

#E9FB91 is a soft, warm green. On the Color Lab it reads organic and grounded. It is too pale to lead as a primary accent and sits well as a supporting tone.

Palettes built on #E9FB91

Not just a swatch — here's how #E9FB91 works with other colors. Named schemes with #E9FB91 in its natural role, and a note on why the supporting colors balance it.

Warm Autumn Interior Dominant · 5 colors

This palette keeps Butter Yellow as the dominant warm neutral, balanced by muted terracotta and olive earth tones and grounded by a deep espresso anchor.

Botanical Studio Lead · 5 colors

Butter Yellow leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.

Desert Clay Center · 5 colors

Butter Yellow holds the warm center of this desert palette with sand and clay beside it, a muted-sage accent and a dark-brown anchor.

Coastal Morning Lead · 5 colors

Butter Yellow opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Minimal Editorial Surface · 5 colors

Butter Yellow is the single accent in this high-contrast editorial system — set on near-white paper against near-black ink, with a warm grey and a desaturated tint of Butter Yellow carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #E9FB91 actually behaves in design work — read from its OKLCH lightness, chroma and hue, not just its raw numbers. Ten signals to help you decide where this color earns its place.

Warmth 65/100
Warm
Reads warm and advancing — inviting, energetic, draws the eye forward.
Softness 70/100
High
Soft and easy on the eye — gentle backdrops, calm surfaces.
Depth 5/100
Very low
Airy and open — recedes, leaves the composition light.
Naturalness 92/100
Very high
Organic, earthy character — at home in wellness, food and craft brands.
Vintage feel 27/100
Low
A faint retro warmth without tipping into sepia.
Luxury 9/100
Very low
Playful and accessible rather than exclusive.
Brand distinctiveness 51/100
Moderate
Recognisable but shares space with nearby hues.
UI accent fit 5/100
Very low
Weak as an action color — too pale, too dark or too muted to signal.
Surface fit 55/100
Moderate
Usable as a tinted surface in measured doses.
Print safety 74/100
High
Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #E9FB91

For UI
For branding
For interior
For fashion
People also use #E9FB91 with

UI roles & guardrails

Primary action Safe as a filled button with near-black label. AAA
Body text Do not use for body copy on light surfaces. Avoid
Large display Only on dark surfaces. Avoid
Background Pair with #141310 text at 16.5:1. Use
Subtle surface Use #F9FBEC for cards and hover fills. Tint 80
Avoid beside #C7FB93 — the hue gap is too small to read as intentional. Clash

In real applications

Not a swatch to memorise — a color to build with. Here is #E9FB91 at work across the surfaces designers actually ship.

Website / UI
Northwind Sign up
Build faster.
A working theme, generated in seconds.
Dashboard
Revenue
$48.2k ▲ 12%
Brand
AVELINE
Studio
Poster
Nov 14 · 8PM
NIGHT
MARKET
Packaging
BLOOM
Botanical Wash
250 ml
Interior

Scales

ShadesBase darkened in 10% steps
TintsBase lifted toward white
TonesSaturation removed, lightness held
Monochromatic scaleDesign-system ready, 50–900

Every model

Export

:root {
  --color-base: #E9FB91;
  --color-base-rgb: 233 251 145;
  --color-base-oklch: oklch(95.2% 0.132 116.9);
  --color-50: #FCFEF0;
  --color-100: #F7FDD8;
  --color-200: #EFFCB1;
  --color-300: #E0F47C;
  --color-400: #CCE64C;
  --color-500: #B1CC29;
  --color-600: #879B27;
  --color-700: #606D22;
  --color-800: #3F471A;
  --color-900: #272B12;
  --color-on-base: #141310;
}