#231A80#231A80

#231A80 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.5% C 0.161 H 275.8°. Best body text is #FFFFFF at 13.72:1 contrast (WCAG AA passes).

Color values

HEX	#231A80
RGB	rgb(35, 26, 128)
HSL	hsl(245, 66%, 30%)
HSV	hsv(245, 80%, 50%)
CMYK	cmyk(72.7%, 79.7%, 0%, 49.8%)
CIE-LAB	lab(18.60, 37.67, -55.28)
CIE-LCH	lch(18.60, 66.90, 304.27°)
OKLab	oklab(31.48% 0.0163 -0.1598)
OKLCH	oklch(31.48% 0.161 275.8)
XYZ	xyz(4.9575, 2.6542, 20.6689)
Luminance	0.0266 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231A80 #77801A

analogous

#1A4480 #231A80 #561A80

triadic

#231A80 #80231A #1A8023

tetradic

#231A80 #801A44 #77801A #1A8056

square

#231A80 #801A44 #77801A #1A8056

split-complementary

#231A80 #80561A #44801A

monochromatic

#07051A #15104D #231A80 #3124B3 #4A3DD8

Accessibility & contrast

On white

13.72

#231A80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#231A80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231A80

13.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231A80	#FFFFFF	#000000	##FFFFFF
##231A80	1.00	13.72	1.53	13.72
#FFFFFF	13.72	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003283

Deuteranopia (green-blind)

#00297E

Tritanopia (blue-blind)

#00384C

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #231a80;
/* rgb */ color: rgb(35, 26, 128);
/* oklch */ color: oklch(31.5% 0.161 275.8);

Tailwind

colors: {
  custom: {
    50: '#6e59a6',
    500: '#231a80',
    950: '#000000',
  },
}

SCSS

$custom: #231a80;
$custom-light: #6e59a6;
$custom-dark: #000000;

JSON

{
  "hex": "#231a80",
  "rgb": {
    "r": 35,
    "g": 26,
    "b": 128
  },
  "hsl": {
    "h": 245.294,
    "s": 66.234,
    "l": 30.196
  },
  "oklch": {
    "l": 0.31476,
    "c": 0.16066,
    "h": 275.8
  },
  "luminance": 0.02655
}

Semantic roles & 50–950 ramp

primary

#231A80

secondary

#AAB442

accent

#E93FDA

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #231A80

Body copy rendered with the generated semantic roles for this colour.

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