#231DA9#231DA9

#231DA9 is a dark, highly saturated blue. Relative luminance 0.041; OKLCH L 36.7% C 0.208 H 271.4°. Best body text is #FFFFFF at 11.54:1 contrast (WCAG AA passes).

Color values

HEX	#231DA9
RGB	rgb(35, 29, 169)
HSL	hsl(243, 71%, 39%)
HSV	hsv(243, 83%, 66%)
CMYK	cmyk(79.3%, 82.8%, 0%, 33.7%)
CIE-LAB	lab(24.00, 49.35, -71.70)
CIE-LCH	lch(24.00, 87.04, 304.54°)
OKLab	oklab(36.65% 0.0051 -0.2075)
OKLCH	oklch(36.65% 0.208 271.4)
XYZ	xyz(8.2915, 4.0997, 37.8828)
Luminance	0.0410 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231DA9 #A3A91D

analogous

#1D5DA9 #231DA9 #691DA9

triadic

#231DA9 #A9231D #1DA923

tetradic

#231DA9 #A91D5D #A3A91D #1DA969

square

#231DA9 #A91D5D #A3A91D #1DA969

split-complementary

#231DA9 #A9691D #5DA91D

monochromatic

#0D0B41 #181475 #231DA9 #3129DA #635DE3

Accessibility & contrast

On white

11.54

#231DA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#231DA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231DA9

11.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231DA9	#FFFFFF	#000000	##FFFFFF
##231DA9	1.00	11.54	1.82	11.54
#FFFFFF	11.54	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0040AD

Deuteranopia (green-blind)

#0032A7

Tritanopia (blue-blind)

#004A65

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #231da9;
/* rgb */ color: rgb(35, 29, 169);
/* oklch */ color: oklch(36.7% 0.208 271.4);

Tailwind

colors: {
  custom: {
    50: '#785dc4',
    500: '#231da9',
    950: '#000000',
  },
}

SCSS

$custom: #231da9;
$custom-light: #785dc4;
$custom-dark: #000000;

JSON

{
  "hex": "#231da9",
  "rgb": {
    "r": 35,
    "g": 29,
    "b": 169
  },
  "hsl": {
    "h": 242.571,
    "s": 70.707,
    "l": 38.824
  },
  "oklch": {
    "l": 0.36651,
    "c": 0.20757,
    "h": 271.4
  },
  "luminance": 0.04101
}

Semantic roles & 50–950 ramp

primary

#231DA9

secondary

#C3C75A

accent

#ED3AE6

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0413

muted

#7C7982

Preview Lab

Preview with #231DA9

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

Preview Lab → · Contrast checker → · Palette generator →