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
#0074CA
Primary
White text 4.8:1 AA
#7572AC
Secondary
Black text 4.8:1 AA
#A08329
Accent
Black text 5.8:1 AA
Button states
#0062B6
Primary hover
6.1:1 AA label
#0052A6
Primary active
pressed state
#B7CADE
Primary disabled
muted, non-interactive
#646199
Secondary hover
3.7:1 AA Large label
Links & focus
#876B00
Link
on background 4.7:1 AA
#725700
Link hover
on background 6.4:1 AA
#A88822
Focus ring
ring 3.2:1 AA Large
#D3EEFF
Selected bg
Text 12.9:1 AAA
Surfaces
#EDF9FF
Background
base surface
#F7FDFF
Surface
Text 15.1:1 AAA
#DAEAFC
Border
subtle, non-text
Inputs
#F9FEFF
Input bg
Text 15.3:1 AAA
#C3D3E5
Input border
field edge
#A88822
Input focus
matches focus ring
Text
#192532
Text
on background 14.5:1 AAA
#5E748B
Muted text
on background 4.5:1 AA
Success
#1B7D3D
Success
on background 4.8:1 AA
#FFFFFF
On Success
5.2:1 AA on Success
#BDFAC8
Success container
Text 4.7:1 AA
#21763C
On Success container
on container 4.7:1 AA
Warning
#9B5F00
Warning
on background 4.9:1 AA
#FFFFFF
On Warning
5.2:1 AA on Warning
#FFDDA7
Warning container
Text 4.7:1 AA
#8F5300
On Warning container
on container 4.7:1 AA
Error
#BF473F
Error
on background 4.7:1 AA
#FFFFFF
On Error
5.0:1 AA on Error
#FFD1C8
Error container
Text 4.6:1 AA
#9C443C
On Error container
on container 4.6:1 AA

In a real finance app

Northwind Overview Transactions Cards
Total balance
$48,209.55
▲ 2.4% vs last month
Salary — Acme Inc +$6,400.00
Card payment −$128.40
Transfer Deposit Statement
✓ Transfer completed.
Completed Pending Declined

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

Export light + dark

:root {
  --primary: #0074CA;
  --on-primary: #FFFFFF;
  --primary-hover: #0062B6;
  --primary-active: #0052A6;
  --primary-disabled: #B7CADE;
  --secondary: #7572AC;
  --secondary-hover: #646199;
  --accent: #A08329;
  --link: #876B00;
  --link-hover: #725700;
  --focus-ring: #A88822;
  --selected-bg: #D3EEFF;
  --background: #EDF9FF;
  --surface: #F7FDFF;
  --border: #DAEAFC;
  --input-bg: #F9FEFF;
  --input-border: #C3D3E5;
  --input-focus: #A88822;
  --text: #192532;
  --muted: #5E748B;
  --success: #1B7D3D;
  --warning: #9B5F00;
  --error: #BF473F;
  --on-success: #FFFFFF;
  --success-container: #BDFAC8;
  --on-success-container: #21763C;
  --on-warning: #FFFFFF;
  --warning-container: #FFDDA7;
  --on-warning-container: #8F5300;
  --on-error: #FFFFFF;
  --error-container: #FFD1C8;
  --on-error-container: #9C443C;
}

[data-theme="dark"] {
  --primary: #0074CA;
  --on-primary: #FFFFFF;
  --primary-hover: #298AE2;
  --primary-active: #3C9AF3;
  --primary-disabled: #2A394A;
  --secondary: #7572AC;
  --secondary-hover: #8A87C3;
  --accent: #A08329;
  --link: #D9BB65;
  --link-hover: #F0D27C;
  --focus-ring: #DBBA5C;
  --selected-bg: #12283E;
  --background: #09131E;
  --surface: #121E2B;
  --border: #25323F;
  --input-bg: #101820;
  --input-border: #374452;
  --input-focus: #DBBA5C;
  --text: #E5F0FC;
  --muted: #90A7C0;
  --success: #81D493;
  --warning: #F4B76E;
  --error: #F37C71;
  --on-success: #000000;
  --success-container: #073215;
  --on-success-container: #A3F5B4;
  --on-warning: #000000;
  --warning-container: #3E2100;
  --on-warning-container: #FFD083;
  --on-error: #000000;
  --error-container: #451915;
  --on-error-container: #FFBFB3;
}
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