UI color system generator

Generate an accessible UI color system

Pick a sector and tone — or drop in your own brand color — and HexPalette derives the full role set (primary, secondary, accent, surfaces, text, and success/warning/error states) in OKLCH, with every intended text pairing checked for WCAG AA contrast. Not five swatches: a system you can ship.

Sector SaaS product Healthcare Finance Crypto & Web3 E-commerce Dashboard
Tone Professional Calm Bold Playful Luxury
Theme Light Dark Primary & Accent stay fixed; surfaces, text and states flip. The export ships both.
Brand color
Brand
#426BCE
Primary
White text 5.0:1 AA
#284382
Secondary
White text 9.5:1 AAA
#8D72D3
Accent
Black text 5.5:1 AA
Button states
#5581E6
Primary hover
3.7:1 AA Large label
#6490F7
Primary active
pressed state
#2F384A
Primary disabled
muted, non-interactive
#3A5798
Secondary hover
7.0:1 AAA label
Links & focus
#C4AAFF
Link
on background 9.6:1 AAA
#DBC0FF
Link hover
on background 11.9:1 AAA
#C4AAFF
Focus ring
ring 9.6:1 AAA
#1A263F
Selected bg
Text 13.1:1 AAA
Surfaces
#0B0F18
Background
base surface
#141925
Surface
Text 15.2:1 AAA
#303848
Border
subtle, non-text
Inputs
#131720
Input bg
Text 15.5:1 AAA
#424B5B
Input border
field edge
#C4AAFF
Input focus
matches focus ring
Text
#E8EFFC
Text
on background 16.6:1 AAA
#9DABC8
Muted text
on background 8.3:1 AAA
Success
#6ED889
Success
on background 10.8:1 AAA
#000000
On Success
11.8:1 AAA on Success
#063215
Success container
Text 11.0:1 AAA
#A2F5B4
On Success container
on container 11.0:1 AAA
Warning
#FEB354
Warning
on background 10.8:1 AAA
#000000
On Warning
11.8:1 AAA on Warning
#3E2100
Warning container
Text 10.3:1 AAA
#FFD083
On Warning container
on container 10.3:1 AAA
Error
#FF7064
Error
on background 7.1:1 AAA
#000000
On Error
7.8:1 AAA on Error
#451915
Error container
Text 9.5:1 AAA
#FFBFB3
On Error container
on container 9.5:1 AAA

In a real product dashboard

Acme Dashboard Team Billing
Monthly active users
12,480
▲ 8.1% this week
New signups +312
Churn −1.2%
Upgrade Invite Report
✓ Workspace settings saved.
Active Trial Past due

Every intended pairing here — text, buttons and states — meets WCAG AA by construction.

Export light + dark

:root {
  --primary: #426BCE;
  --on-primary: #FFFFFF;
  --primary-hover: #3259BA;
  --primary-active: #2549A9;
  --primary-disabled: #BCC8DF;
  --secondary: #284382;
  --secondary-hover: #193270;
  --accent: #8D72D3;
  --link: #7B60BF;
  --link-hover: #674BA8;
  --focus-ring: #997EE0;
  --selected-bg: #DBECFF;
  --background: #F5FAFF;
  --surface: #FBFFFF;
  --border: #D6DEEF;
  --input-bg: #FAFDFF;
  --input-border: #BFC7D8;
  --input-focus: #997EE0;
  --text: #1D2433;
  --muted: #626F8A;
  --success: #008130;
  --warning: #AA6000;
  --error: #CC3430;
  --on-success: #FFFFFF;
  --success-container: #C0F9C6;
  --on-success-container: #287539;
  --on-warning: #FFFFFF;
  --warning-container: #FFDBAA;
  --on-warning-container: #935000;
  --on-error: #FFFFFF;
  --error-container: #FFD1C8;
  --on-error-container: #9C443C;
}

[data-theme="dark"] {
  --primary: #426BCE;
  --on-primary: #FFFFFF;
  --primary-hover: #5581E6;
  --primary-active: #6490F7;
  --primary-disabled: #2F384A;
  --secondary: #284382;
  --secondary-hover: #3A5798;
  --accent: #8D72D3;
  --link: #C4AAFF;
  --link-hover: #DBC0FF;
  --focus-ring: #C4AAFF;
  --selected-bg: #1A263F;
  --background: #0B0F18;
  --surface: #141925;
  --border: #303848;
  --input-bg: #131720;
  --input-border: #424B5B;
  --input-focus: #C4AAFF;
  --text: #E8EFFC;
  --muted: #9DABC8;
  --success: #6ED889;
  --warning: #FEB354;
  --error: #FF7064;
  --on-success: #000000;
  --success-container: #063215;
  --on-success-container: #A2F5B4;
  --on-warning: #000000;
  --warning-container: #3E2100;
  --on-warning-container: #FFD083;
  --on-error: #000000;
  --error-container: #451915;
  --on-error-container: #FFBFB3;
}
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