#231E8A#231E8A

#231E8A is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.2% C 0.169 H 274.1°. Best body text is #FFFFFF at 12.93:1 contrast (WCAG AA passes).

Color values

HEX	#231E8A
RGB	rgb(35, 30, 138)
HSL	hsl(243, 64%, 33%)
HSV	hsv(243, 78%, 54%)
CMYK	cmyk(74.6%, 78.3%, 0%, 45.9%)
CIE-LAB	lab(20.52, 38.79, -58.42)
CIE-LCH	lch(20.52, 70.12, 303.59°)
OKLab	oklab(33.16% 0.012 -0.169)
OKLCH	oklch(33.16% 0.169 274.1)
XYZ	xyz(5.7433, 3.1203, 24.3394)
Luminance	0.0312 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231E8A #858A1E

analogous

#1E4F8A #231E8A #591E8A

triadic

#231E8A #8A231E #1E8A23

tetradic

#231E8A #8A1E4F #858A1E #1E8A59

square

#231E8A #8A1E4F #858A1E #1E8A59

split-complementary

#231E8A #8A591E #4F8A1E

monochromatic

#090825 #161358 #231E8A #3029BC #514BD8

Accessibility & contrast

On white

12.93

#231E8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#231E8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231E8A

12.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231E8A	#FFFFFF	#000000	##FFFFFF
##231E8A	1.00	12.93	1.62	12.93
#FFFFFF	12.93	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00368D

Deuteranopia (green-blind)

#002C88

Tritanopia (blue-blind)

#003E53

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #231e8a;
/* rgb */ color: rgb(35, 30, 138);
/* oklch */ color: oklch(33.2% 0.169 274.1);

Tailwind

colors: {
  custom: {
    50: '#705cad',
    500: '#231e8a',
    950: '#000000',
  },
}

SCSS

$custom: #231e8a;
$custom-light: #705cad;
$custom-dark: #000000;

JSON

{
  "hex": "#231e8a",
  "rgb": {
    "r": 35,
    "g": 30,
    "b": 138
  },
  "hsl": {
    "h": 242.778,
    "s": 64.286,
    "l": 32.941
  },
  "oklch": {
    "l": 0.3316,
    "c": 0.1694,
    "h": 274.1
  },
  "luminance": 0.03121
}

Semantic roles & 50–950 ramp

primary

#231E8A

secondary

#B5BA4A

accent

#E741E0

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #231E8A

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

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