#231C97#231C97

#231C97 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.4% C 0.187 H 273.0°. Best body text is #FFFFFF at 12.47:1 contrast (WCAG AA passes).

Color values

HEX	#231C97
RGB	rgb(35, 28, 151)
HSL	hsl(243, 69%, 35%)
HSV	hsv(243, 81%, 59%)
CMYK	cmyk(76.8%, 81.5%, 0%, 40.8%)
CIE-LAB	lab(21.66, 44.15, -64.60)
CIE-LCH	lch(21.66, 78.25, 304.35°)
OKLab	oklab(34.4% 0.0097 -0.1869)
OKLCH	oklch(34.4% 0.187 273)
XYZ	xyz(6.6924, 3.4215, 29.5799)
Luminance	0.0342 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231C97 #90971C

analogous

#1C5297 #231C97 #611C97

triadic

#231C97 #97231C #1C9723

tetradic

#231C97 #971C52 #90971C #1C9761

square

#231C97 #971C52 #90971C #1C9761

split-complementary

#231C97 #97611C #52971C

monochromatic

#0B0930 #171263 #231C97 #2F26CB #574FDE

Accessibility & contrast

On white

12.47

#231C97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#231C97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231C97

12.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231C97	#FFFFFF	#000000	##FFFFFF
##231C97	1.00	12.47	1.68	12.47
#FFFFFF	12.47	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A9A

Deuteranopia (green-blind)

#002E95

Tritanopia (blue-blind)

#00425A

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #231c97;
/* rgb */ color: rgb(35, 28, 151);
/* oklch */ color: oklch(34.4% 0.187 273.0);

Tailwind

colors: {
  custom: {
    50: '#735cb7',
    500: '#231c97',
    950: '#000000',
  },
}

SCSS

$custom: #231c97;
$custom-light: #735cb7;
$custom-dark: #000000;

JSON

{
  "hex": "#231c97",
  "rgb": {
    "r": 35,
    "g": 28,
    "b": 151
  },
  "hsl": {
    "h": 243.415,
    "s": 68.715,
    "l": 35.098
  },
  "oklch": {
    "l": 0.34399,
    "c": 0.18717,
    "h": 273
  },
  "luminance": 0.03422
}

Semantic roles & 50–950 ramp

primary

#231C97

secondary

#BAC14E

accent

#EC3CE2

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #231C97

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

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