#231D97#231D97

#231D97 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.5% C 0.186 H 272.9°. Best body text is #FFFFFF at 12.40:1 contrast (WCAG AA passes).

Color values

HEX	#231D97
RGB	rgb(35, 29, 151)
HSL	hsl(243, 68%, 35%)
HSV	hsv(243, 81%, 59%)
CMYK	cmyk(76.8%, 80.8%, 0%, 40.8%)
CIE-LAB	lab(21.83, 43.63, -64.31)
CIE-LCH	lch(21.83, 77.72, 304.16°)
OKLab	oklab(34.52% 0.0094 -0.1861)
OKLCH	oklch(34.52% 0.186 272.9)
XYZ	xyz(6.7165, 3.4697, 29.5879)
Luminance	0.0347 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231D97 #91971D

analogous

#1D5497 #231D97 #601D97

triadic

#231D97 #97231D #1D9723

tetradic

#231D97 #971D54 #91971D #1D9760

square

#231D97 #971D54 #91971D #1D9760

split-complementary

#231D97 #97601D #54971D

monochromatic

#0B0930 #171364 #231D97 #2F27CA #5851DE

Accessibility & contrast

On white

12.40

#231D97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#231D97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231D97

12.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231D97	#FFFFFF	#000000	##FFFFFF
##231D97	1.00	12.40	1.69	12.40
#FFFFFF	12.40	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A9A

Deuteranopia (green-blind)

#002E95

Tritanopia (blue-blind)

#00435A

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #231d97;
/* rgb */ color: rgb(35, 29, 151);
/* oklch */ color: oklch(34.5% 0.186 272.9);

Tailwind

colors: {
  custom: {
    50: '#735cb7',
    500: '#231d97',
    950: '#000000',
  },
}

SCSS

$custom: #231d97;
$custom-light: #735cb7;
$custom-dark: #000000;

JSON

{
  "hex": "#231d97",
  "rgb": {
    "r": 35,
    "g": 29,
    "b": 151
  },
  "hsl": {
    "h": 242.951,
    "s": 67.778,
    "l": 35.294
  },
  "oklch": {
    "l": 0.34522,
    "c": 0.18633,
    "h": 272.9
  },
  "luminance": 0.0347
}

Semantic roles & 50–950 ramp

primary

#231D97

secondary

#BBC04F

accent

#EB3DE2

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #231D97

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

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