#231CA7#231CA7

#231CA7 is a dark, highly saturated blue. Relative luminance 0.040; OKLCH L 36.3% C 0.206 H 271.6°. Best body text is #FFFFFF at 11.70:1 contrast (WCAG AA passes).

Color values

HEX	#231CA7
RGB	rgb(35, 28, 167)
HSL	hsl(243, 71%, 38%)
HSV	hsv(243, 83%, 65%)
CMYK	cmyk(79%, 83.2%, 0%, 34.5%)
CIE-LAB	lab(23.60, 49.19, -71.16)
CIE-LCH	lch(23.60, 86.51, 304.65°)
OKLab	oklab(36.3% 0.0058 -0.2059)
OKLCH	oklch(36.3% 0.206 271.6)
XYZ	xyz(8.0811, 3.9770, 36.8935)
Luminance	0.0398 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231CA7 #A0A71C

analogous

#1C5AA7 #231CA7 #691CA7

triadic

#231CA7 #A7231C #1CA723

tetradic

#231CA7 #A71C5A #A0A71C #1CA769

square

#231CA7 #A71C5A #A0A71C #1CA769

split-complementary

#231CA7 #A7691C #5AA71C

monochromatic

#0D0A3E #181373 #231CA7 #2F26DB #615AE3

Accessibility & contrast

On white

11.70

#231CA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#231CA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231CA7

11.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231CA7	#FFFFFF	#000000	##FFFFFF
##231CA7	1.00	11.70	1.80	11.70
#FFFFFF	11.70	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003FAB

Deuteranopia (green-blind)

#0031A5

Tritanopia (blue-blind)

#004963

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #231ca7;
/* rgb */ color: rgb(35, 28, 167);
/* oklch */ color: oklch(36.3% 0.206 271.6);

Tailwind

colors: {
  custom: {
    50: '#775dc3',
    500: '#231ca7',
    950: '#000000',
  },
}

SCSS

$custom: #231ca7;
$custom-light: #775dc3;
$custom-dark: #000000;

JSON

{
  "hex": "#231ca7",
  "rgb": {
    "r": 35,
    "g": 28,
    "b": 167
  },
  "hsl": {
    "h": 243.022,
    "s": 71.282,
    "l": 38.235
  },
  "oklch": {
    "l": 0.36301,
    "c": 0.206,
    "h": 271.6
  },
  "luminance": 0.03978
}

Semantic roles & 50–950 ramp

primary

#231CA7

secondary

#C1C758

accent

#EE3AE5

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0413

muted

#7C7982

Preview Lab

Preview with #231CA7

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

Preview Lab → · Contrast checker → · Palette generator →