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
#054880
Secondary
White text 9.4:1 AAA
#7879D9
Accent
Black text 5.5:1 AA
Button states
#0062B6
Primary hover
6.1:1 AA label
#0052A6
Primary active
pressed state
#B7CADE
Primary disabled
muted, non-interactive
#00376E
Secondary hover
11.9:1 AAA label
Links & focus
#6767C5
Link
on background 4.6:1 AA
#5452AE
Link hover
on background 6.3:1 AA
#8486E7
Focus ring
ring 3.1:1 AA Large
#D3EEFF
Selected bg
Text 12.9:1 AAA
Surfaces
#F2FBFF
Background
base surface
#FAFFFF
Surface
Text 15.4:1 AAA
#D3E0EE
Border
subtle, non-text
Inputs
#F9FEFF
Input bg
Text 15.3:1 AAA
#BCC9D7
Input border
field edge
#8486E7
Input focus
matches focus ring
Text
#192532
Text
on background 14.8:1 AAA
#5B7188
Muted text
on background 4.8:1 AA
Success
#008130
Success
on background 4.8:1 AA
#FFFFFF
On Success
5.0:1 AA on Success
#C0F9C6
Success container
Text 4.8:1 AA
#287539
On Success container
on container 4.8:1 AA
Warning
#AA6000
Warning
on background 4.6:1 AA
#FFFFFF
On Warning
4.8:1 AA on Warning
#FFDBAA
Warning container
Text 4.7:1 AA
#935000
On Warning container
on container 4.7:1 AA
Error
#CC3430
Error
on background 4.9:1 AA
#FFFFFF
On Error
5.1:1 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: #054880;
  --secondary-hover: #00376E;
  --accent: #7879D9;
  --link: #6767C5;
  --link-hover: #5452AE;
  --focus-ring: #8486E7;
  --selected-bg: #D3EEFF;
  --background: #F2FBFF;
  --surface: #FAFFFF;
  --border: #D3E0EE;
  --input-bg: #F9FEFF;
  --input-border: #BCC9D7;
  --input-focus: #8486E7;
  --text: #192532;
  --muted: #5B7188;
  --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: #0074CA;
  --on-primary: #FFFFFF;
  --primary-hover: #298AE2;
  --primary-active: #3C9AF3;
  --primary-disabled: #2A394A;
  --secondary: #054880;
  --secondary-hover: #205C96;
  --accent: #7879D9;
  --link: #AEB2FF;
  --link-hover: #C4C9FF;
  --focus-ring: #AEB2FF;
  --selected-bg: #12283E;
  --background: #091018;
  --surface: #111A24;
  --border: #2C3947;
  --input-bg: #101820;
  --input-border: #3E4C5A;
  --input-focus: #AEB2FF;
  --text: #E5F0FC;
  --muted: #96AEC7;
  --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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