#252F3F#252F3F

#252F3F is a dark, muted blue. Relative luminance 0.028; OKLCH L 30.3% C 0.032 H 259.7°. Best body text is #FFFFFF at 13.49:1 contrast (WCAG AA passes).

Color values

HEX	#252F3F
RGB	rgb(37, 47, 63)
HSL	hsl(217, 26%, 20%)
HSV	hsv(217, 41%, 25%)
CMYK	cmyk(41.3%, 25.4%, 0%, 75.3%)
CIE-LAB	lab(19.16, 0.56, -11.46)
CIE-LCH	lch(19.16, 11.48, 272.78°)
OKLab	oklab(30.32% -0.0058 -0.0317)
OKLCH	oklch(30.32% 0.032 259.7)
XYZ	xyz(2.6764, 2.7851, 5.0982)
Luminance	0.0278 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#252F3F #3F3525

analogous

#253C3F #252F3F #28253F

triadic

#252F3F #3F252F #2F3F25

tetradic

#252F3F #3F253C #3F3525 #253F28

square

#252F3F #3F253C #3F3525 #253F28

split-complementary

#252F3F #3F2825 #3C3F25

monochromatic

#0B0E13 #0E1218 #252F3F #3C4C66 #52698C

Accessibility & contrast

On white

13.49

#252F3F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#252F3F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #252F3F

13.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##252F3F	#FFFFFF	#000000	##FFFFFF
##252F3F	1.00	13.49	1.56	13.49
#FFFFFF	13.49	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#293040

Deuteranopia (green-blind)

#272D3F

Tritanopia (blue-blind)

#1D3234

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #252f3f;
/* rgb */ color: rgb(37, 47, 63);
/* oklch */ color: oklch(30.3% 0.032 259.7);

Tailwind

colors: {
  custom: {
    50: '#606774',
    500: '#252f3f',
    950: '#000000',
  },
}

SCSS

$custom: #252f3f;
$custom-light: #606774;
$custom-dark: #000000;

JSON

{
  "hex": "#252f3f",
  "rgb": {
    "r": 37,
    "g": 47,
    "b": 63
  },
  "hsl": {
    "h": 216.923,
    "s": 26,
    "l": 19.608
  },
  "oklch": {
    "l": 0.30321,
    "c": 0.03225,
    "h": 259.7
  },
  "luminance": 0.02785
}

Semantic roles & 50–950 ramp

primary

#252F3F

secondary

#71644E

accent

#9F65C2

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#050608

muted

#797A7B

Preview Lab

Preview with #252F3F

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

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