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
#C73336
Secondary
White text 5.3:1 AA
#00A41D
Accent
Black text 6.3:1 AA
Button states
#5581E6
Primary hover
3.7:1 AA Large label
#6490F7
Primary active
pressed state
#2F384A
Primary disabled
muted, non-interactive
#E04C4A
Secondary hover
4.0:1 AA Large label
Links & focus
#5CDE5E
Link
on background 10.9:1 AAA
#75F675
Link hover
on background 13.8:1 AAA
#5FDD61
Focus ring
ring 10.9:1 AAA
#1A263F
Selected bg
Text 13.1:1 AAA
Surfaces
#0B101B
Background
base surface
#141B29
Surface
Text 14.9:1 AAA
#353D4D
Border
subtle, non-text
Inputs
#131720
Input bg
Text 15.5:1 AAA
#475060
Input border
field edge
#5FDD61
Input focus
matches focus ring
Text
#E8EFFC
Text
on background 16.5:1 AAA
#A3B1CF
Muted text
on background 8.8:1 AAA
Success
#5BDC80
Success
on background 10.9:1 AAA
#000000
On Success
12.0:1 AAA on Success
#063215
Success container
Text 11.0:1 AAA
#A2F5B4
On Success container
on container 11.0:1 AAA
Warning
#FFAF36
Warning
on background 10.4:1 AAA
#000000
On Warning
11.4:1 AAA on Warning
#3D2200
Warning container
Text 10.3:1 AAA
#FFD181
On Warning container
on container 10.3:1 AAA
Error
#FF6359
Error
on background 6.5:1 AA
#000000
On Error
7.2:1 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: #C73336;
  --secondary-hover: #B21924;
  --accent: #00A41D;
  --link: #008300;
  --link-hover: #006E00;
  --focus-ring: #0AA220;
  --selected-bg: #DBECFF;
  --background: #F2F9FF;
  --surface: #FAFEFF;
  --border: #D1DBEF;
  --input-bg: #FAFEFF;
  --input-border: #BBC4D8;
  --input-focus: #0AA220;
  --text: #1D2433;
  --muted: #626F8A;
  --success: #008323;
  --warning: #B25B00;
  --error: #DE2426;
  --on-success: #FFFFFF;
  --success-container: #C2F9C3;
  --on-success-container: #2E7535;
  --on-warning: #FFFFFF;
  --warning-container: #FFD9AE;
  --on-warning-container: #964D08;
  --on-error: #FFFFFF;
  --error-container: #FFD1C7;
  --on-error-container: #9C443C;
}

[data-theme="dark"] {
  --primary: #426BCE;
  --on-primary: #FFFFFF;
  --primary-hover: #5581E6;
  --primary-active: #6490F7;
  --primary-disabled: #2F384A;
  --secondary: #C73336;
  --secondary-hover: #E04C4A;
  --accent: #00A41D;
  --link: #5CDE5E;
  --link-hover: #75F675;
  --focus-ring: #5FDD61;
  --selected-bg: #1A263F;
  --background: #0B101B;
  --surface: #141B29;
  --border: #353D4D;
  --input-bg: #131720;
  --input-border: #475060;
  --input-focus: #5FDD61;
  --text: #E8EFFC;
  --muted: #A3B1CF;
  --success: #5BDC80;
  --warning: #FFAF36;
  --error: #FF6359;
  --on-success: #000000;
  --success-container: #063215;
  --on-success-container: #A2F5B4;
  --on-warning: #000000;
  --warning-container: #3D2200;
  --on-warning-container: #FFD181;
  --on-error: #000000;
  --error-container: #451915;
  --on-error-container: #FFBFB3;
}
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