#231A83#231A83

#231A83 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.8% C 0.164 H 275.4°. Best body text is #FFFFFF at 13.57:1 contrast (WCAG AA passes).

Color values

HEX	#231A83
RGB	rgb(35, 26, 131)
HSL	hsl(245, 67%, 31%)
HSV	hsv(245, 80%, 51%)
CMYK	cmyk(73.3%, 80.2%, 0%, 48.6%)
CIE-LAB	lab(18.95, 38.67, -56.61)
CIE-LCH	lch(18.95, 68.56, 304.33°)
OKLab	oklab(31.82% 0.0155 -0.1637)
OKLCH	oklch(31.82% 0.164 275.4)
XYZ	xyz(5.1579, 2.7343, 21.7243)
Luminance	0.0273 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231A83 #7A831A

analogous

#1A4583 #231A83 #571A83

triadic

#231A83 #83231A #1A8323

tetradic

#231A83 #831A45 #7A831A #1A8357

square

#231A83 #831A45 #7A831A #1A8357

split-complementary

#231A83 #83571A #45831A

monochromatic

#08061D #151050 #231A83 #3124B6 #4C3FD9

Accessibility & contrast

On white

13.57

#231A83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#231A83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231A83

13.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231A83	#FFFFFF	#000000	##FFFFFF
##231A83	1.00	13.57	1.55	13.57
#FFFFFF	13.57	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003386

Deuteranopia (green-blind)

#002981

Tritanopia (blue-blind)

#003A4E

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #231a83;
/* rgb */ color: rgb(35, 26, 131);
/* oklch */ color: oklch(31.8% 0.164 275.4);

Tailwind

colors: {
  custom: {
    50: '#6e59a8',
    500: '#231a83',
    950: '#000000',
  },
}

SCSS

$custom: #231a83;
$custom-light: #6e59a8;
$custom-dark: #000000;

JSON

{
  "hex": "#231a83",
  "rgb": {
    "r": 35,
    "g": 26,
    "b": 131
  },
  "hsl": {
    "h": 245.143,
    "s": 66.879,
    "l": 30.784
  },
  "oklch": {
    "l": 0.3182,
    "c": 0.16443,
    "h": 275.4
  },
  "luminance": 0.02735
}

Semantic roles & 50–950 ramp

primary

#231A83

secondary

#ADB742

accent

#EA3EDB

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #231A83

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

Preview Lab → · Contrast checker → · Palette generator →