#231C98#231C98

#231C98 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.5% C 0.188 H 272.9°. Best body text is #FFFFFF at 12.42:1 contrast (WCAG AA passes).

Color values

HEX	#231C98
RGB	rgb(35, 28, 152)
HSL	hsl(243, 69%, 35%)
HSV	hsv(243, 82%, 60%)
CMYK	cmyk(77%, 81.6%, 0%, 40.4%)
CIE-LAB	lab(21.78, 44.47, -65.02)
CIE-LCH	lch(21.78, 78.77, 304.37°)
OKLab	oklab(34.52% 0.0095 -0.1881)
OKLCH	oklch(34.52% 0.188 272.9)
XYZ	xyz(6.7740, 3.4541, 30.0094)
Luminance	0.0345 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231C98 #91981C

analogous

#1C5398 #231C98 #611C98

triadic

#231C98 #98231C #1C9823

tetradic

#231C98 #981C53 #91981C #1C9861

square

#231C98 #981C53 #91981C #1C9861

split-complementary

#231C98 #98611C #53981C

monochromatic

#0B0931 #171264 #231C98 #2F26CC #5850DF

Accessibility & contrast

On white

12.42

#231C98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#231C98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231C98

12.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231C98	#FFFFFF	#000000	##FFFFFF
##231C98	1.00	12.42	1.69	12.42
#FFFFFF	12.42	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A9B

Deuteranopia (green-blind)

#002E96

Tritanopia (blue-blind)

#00435B

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #231c98;
/* rgb */ color: rgb(35, 28, 152);
/* oklch */ color: oklch(34.5% 0.188 272.9);

Tailwind

colors: {
  custom: {
    50: '#735cb8',
    500: '#231c98',
    950: '#000000',
  },
}

SCSS

$custom: #231c98;
$custom-light: #735cb8;
$custom-dark: #000000;

JSON

{
  "hex": "#231c98",
  "rgb": {
    "r": 35,
    "g": 28,
    "b": 152
  },
  "hsl": {
    "h": 243.387,
    "s": 68.889,
    "l": 35.294
  },
  "oklch": {
    "l": 0.34517,
    "c": 0.18837,
    "h": 272.9
  },
  "luminance": 0.03455
}

Semantic roles & 50–950 ramp

primary

#231C98

secondary

#BBC14E

accent

#EC3CE2

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #231C98

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

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