#231DA7#231DA7

#231DA7 is a dark, highly saturated blue. Relative luminance 0.040; OKLCH L 36.4% C 0.205 H 271.5°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#231DA7
RGB	rgb(35, 29, 167)
HSL	hsl(243, 70%, 38%)
HSV	hsv(243, 83%, 65%)
CMYK	cmyk(79%, 82.6%, 0%, 34.5%)
CIE-LAB	lab(23.75, 48.72, -70.90)
CIE-LCH	lch(23.75, 86.03, 304.50°)
OKLab	oklab(36.41% 0.0056 -0.2052)
OKLCH	oklch(36.41% 0.205 271.5)
XYZ	xyz(8.1052, 4.0252, 36.9015)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231DA7 #A1A71D

analogous

#1D5CA7 #231DA7 #681DA7

triadic

#231DA7 #A7231D #1DA723

tetradic

#231DA7 #A71D5C #A1A71D #1DA768

square

#231DA7 #A71D5C #A1A71D #1DA768

split-complementary

#231DA7 #A7681D #5CA71D

monochromatic

#0D0B3F #181473 #231DA7 #2F28DA #625CE3

Accessibility & contrast

On white

11.63

#231DA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#231DA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231DA7

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231DA7	#FFFFFF	#000000	##FFFFFF
##231DA7	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003FAB

Deuteranopia (green-blind)

#0031A5

Tritanopia (blue-blind)

#004963

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #231da7;
/* rgb */ color: rgb(35, 29, 167);
/* oklch */ color: oklch(36.4% 0.205 271.5);

Tailwind

colors: {
  custom: {
    50: '#775dc3',
    500: '#231da7',
    950: '#000000',
  },
}

SCSS

$custom: #231da7;
$custom-light: #775dc3;
$custom-dark: #000000;

JSON

{
  "hex": "#231da7",
  "rgb": {
    "r": 35,
    "g": 29,
    "b": 167
  },
  "hsl": {
    "h": 242.609,
    "s": 70.408,
    "l": 38.431
  },
  "oklch": {
    "l": 0.36412,
    "c": 0.20526,
    "h": 271.5
  },
  "luminance": 0.04026
}

Semantic roles & 50–950 ramp

primary

#231DA7

secondary

#C2C759

accent

#ED3BE5

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0413

muted

#7C7982

Preview Lab

Preview with #231DA7

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

Preview Lab → · Contrast checker → · Palette generator →