#232B57#232B57

#232B57 is a dark, moderate blue. Relative luminance 0.028; OKLCH L 30.7% C 0.079 H 273.1°. Best body text is #FFFFFF at 13.51:1 contrast (WCAG AA passes).

Color values

HEX	#232B57
RGB	rgb(35, 43, 87)
HSL	hsl(231, 43%, 24%)
HSV	hsv(231, 60%, 34%)
CMYK	cmyk(59.8%, 50.6%, 0%, 65.9%)
CIE-LAB	lab(19.11, 11.39, -27.79)
CIE-LCH	lch(19.11, 30.03, 292.29°)
OKLab	oklab(30.7% 0.0043 -0.0792)
OKLCH	oklch(30.7% 0.079 273.1)
XYZ	xyz(3.2768, 2.7730, 9.3775)
Luminance	0.0277 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#232B57 #574F23

analogous

#234557 #232B57 #352357

triadic

#232B57 #57232B #2B5723

tetradic

#232B57 #572345 #574F23 #235735

square

#232B57 #572345 #574F23 #235735

split-complementary

#232B57 #573523 #455723

monochromatic

#090B16 #11152B #232B57 #354183 #4656AE

Accessibility & contrast

On white

13.51

#232B57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#232B57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #232B57

13.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##232B57	#FFFFFF	#000000	##FFFFFF
##232B57	1.00	13.51	1.55	13.51
#FFFFFF	13.51	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#173159

Deuteranopia (green-blind)

#102C56

Tritanopia (blue-blind)

#07353C

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #232b57;
/* rgb */ color: rgb(35, 43, 87);
/* oklch */ color: oklch(30.7% 0.079 273.1);

Tailwind

colors: {
  custom: {
    50: '#636487',
    500: '#232b57',
    950: '#000000',
  },
}

SCSS

$custom: #232b57;
$custom-light: #636487;
$custom-dark: #000000;

JSON

{
  "hex": "#232b57",
  "rgb": {
    "r": 35,
    "g": 43,
    "b": 87
  },
  "hsl": {
    "h": 230.769,
    "s": 42.623,
    "l": 23.922
  },
  "oklch": {
    "l": 0.30695,
    "c": 0.0793,
    "h": 273.1
  },
  "luminance": 0.02773
}

Semantic roles & 50–950 ramp

primary

#232B57

secondary

#8B814B

accent

#BF55D2

background

#F6F5F8

surface

#EBEAEF

border

#C6C6CA

text

#05050B

muted

#7A797C

Preview Lab

Preview with #232B57

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

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