#231E57#231E57

#231E57 is a dark, moderate blue. Relative luminance 0.020; OKLCH L 27.9% C 0.099 H 281.8°. Best body text is #FFFFFF at 15.06:1 contrast (WCAG AA passes).

Color values

HEX	#231E57
RGB	rgb(35, 30, 87)
HSL	hsl(245, 49%, 23%)
HSV	hsv(245, 66%, 34%)
CMYK	cmyk(59.8%, 65.5%, 0%, 65.9%)
CIE-LAB	lab(15.35, 20.70, -33.85)
CIE-LCH	lch(15.35, 39.68, 301.45°)
OKLab	oklab(27.88% 0.0203 -0.0971)
OKLCH	oklch(27.88% 0.099 281.8)
XYZ	xyz(2.8772, 1.9738, 9.2444)
Luminance	0.0197 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231E57 #52571E

analogous

#1E3557 #231E57 #3F1E57

triadic

#231E57 #57231E #1E5723

tetradic

#231E57 #571E35 #52571E #1E573F

square

#231E57 #571E35 #52571E #1E573F

split-complementary

#231E57 #573F1E #35571E

monochromatic

#090817 #110E29 #231E57 #352E85 #483DB2

Accessibility & contrast

On white

15.06

#231E57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#231E57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231E57

15.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231E57	#FFFFFF	#000000	##FFFFFF
##231E57	1.00	15.06	1.39	15.06
#FFFFFF	15.06	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002859

Deuteranopia (green-blind)

#002456

Tritanopia (blue-blind)

#0A2C37

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #231e57;
/* rgb */ color: rgb(35, 30, 87);
/* oklch */ color: oklch(27.9% 0.099 281.8);

Tailwind

colors: {
  custom: {
    50: '#645a87',
    500: '#231e57',
    950: '#000000',
  },
}

SCSS

$custom: #231e57;
$custom-light: #645a87;
$custom-dark: #000000;

JSON

{
  "hex": "#231e57",
  "rgb": {
    "r": 35,
    "g": 30,
    "b": 87
  },
  "hsl": {
    "h": 245.263,
    "s": 48.718,
    "l": 22.941
  },
  "oklch": {
    "l": 0.27881,
    "c": 0.09923,
    "h": 281.8
  },
  "luminance": 0.01974
}

Semantic roles & 50–950 ramp

primary

#231E57

secondary

#868C45

accent

#D850CC

background

#F6F5F8

surface

#EBE9EF

border

#C6C5CA

text

#06030B

muted

#7A787C

Preview Lab

Preview with #231E57

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

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