#231D98#231D98

#231D98 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.6% C 0.188 H 272.8°. Best body text is #FFFFFF at 12.35:1 contrast (WCAG AA passes).

Color values

HEX	#231D98
RGB	rgb(35, 29, 152)
HSL	hsl(243, 68%, 35%)
HSV	hsv(243, 81%, 60%)
CMYK	cmyk(77%, 80.9%, 0%, 40.4%)
CIE-LAB	lab(21.95, 43.96, -64.73)
CIE-LCH	lch(21.95, 78.25, 304.18°)
OKLab	oklab(34.64% 0.0091 -0.1873)
OKLCH	oklch(34.64% 0.188 272.8)
XYZ	xyz(6.7981, 3.5023, 30.0174)
Luminance	0.0350 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231D98 #92981D

analogous

#1D5498 #231D98 #601D98

triadic

#231D98 #98231D #1D9823

tetradic

#231D98 #981D54 #92981D #1D9860

square

#231D98 #981D54 #92981D #1D9860

split-complementary

#231D98 #98601D #54981D

monochromatic

#0B0931 #171365 #231D98 #2F27CB #5852DE

Accessibility & contrast

On white

12.35

#231D98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#231D98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231D98

12.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231D98	#FFFFFF	#000000	##FFFFFF
##231D98	1.00	12.35	1.70	12.35
#FFFFFF	12.35	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A9B

Deuteranopia (green-blind)

#002E96

Tritanopia (blue-blind)

#00435B

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #231d98;
/* rgb */ color: rgb(35, 29, 152);
/* oklch */ color: oklch(34.6% 0.188 272.8);

Tailwind

colors: {
  custom: {
    50: '#735cb8',
    500: '#231d98',
    950: '#000000',
  },
}

SCSS

$custom: #231d98;
$custom-light: #735cb8;
$custom-dark: #000000;

JSON

{
  "hex": "#231d98",
  "rgb": {
    "r": 35,
    "g": 29,
    "b": 152
  },
  "hsl": {
    "h": 242.927,
    "s": 67.956,
    "l": 35.49
  },
  "oklch": {
    "l": 0.34639,
    "c": 0.18753,
    "h": 272.8
  },
  "luminance": 0.03503
}

Semantic roles & 50–950 ramp

primary

#231D98

secondary

#BBC150

accent

#EB3DE2

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #231D98

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

Preview Lab → · Contrast checker → · Palette generator →