#231A9D#231A9D

#231A9D is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.9% C 0.196 H 272.6°. Best body text is #FFFFFF at 12.31:1 contrast (WCAG AA passes).

Color values

HEX	#231A9D
RGB	rgb(35, 26, 157)
HSL	hsl(244, 72%, 36%)
HSV	hsv(244, 83%, 62%)
CMYK	cmyk(77.7%, 83.4%, 0%, 38.4%)
CIE-LAB	lab(22.05, 47.02, -67.64)
CIE-LCH	lch(22.05, 82.37, 304.81°)
OKLab	oklab(34.88% 0.0088 -0.1957)
OKLCH	oklch(34.88% 0.196 272.6)
XYZ	xyz(7.1463, 3.5297, 32.1964)
Luminance	0.0353 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231A9D #949D1A

analogous

#1A529D #231A9D #641A9D

triadic

#231A9D #9D231A #1A9D23

tetradic

#231A9D #9D1A52 #949D1A #1A9D64

square

#231A9D #9D1A52 #949D1A #1A9D64

split-complementary

#231A9D #9D641A #529D1A

monochromatic

#0C0934 #171168 #231A9D #2F23D2 #5A4FE2

Accessibility & contrast

On white

12.31

#231A9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#231A9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231A9D

12.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231A9D	#FFFFFF	#000000	##FFFFFF
##231A9D	1.00	12.31	1.71	12.31
#FFFFFF	12.31	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003BA1

Deuteranopia (green-blind)

#002E9B

Tritanopia (blue-blind)

#00445D

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #231a9d;
/* rgb */ color: rgb(35, 26, 157);
/* oklch */ color: oklch(34.9% 0.196 272.6);

Tailwind

colors: {
  custom: {
    50: '#755bbb',
    500: '#231a9d',
    950: '#000000',
  },
}

SCSS

$custom: #231a9d;
$custom-light: #755bbb;
$custom-dark: #000000;

JSON

{
  "hex": "#231a9d",
  "rgb": {
    "r": 35,
    "g": 26,
    "b": 157
  },
  "hsl": {
    "h": 244.122,
    "s": 71.585,
    "l": 35.882
  },
  "oklch": {
    "l": 0.34881,
    "c": 0.19588,
    "h": 272.6
  },
  "luminance": 0.0353
}

Semantic roles & 50–950 ramp

primary

#231A9D

secondary

#BCC44E

accent

#EE39E2

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #231A9D

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

Preview Lab → · Contrast checker → · Palette generator →