#253F50#253F50

#253F50 is a dark, muted cyan. Relative luminance 0.045; OKLCH L 35.4% C 0.044 H 238.4°. Best body text is #FFFFFF at 11.02:1 contrast (WCAG AA passes).

Color values

HEX	#253F50
RGB	rgb(37, 63, 80)
HSL	hsl(204, 37%, 23%)
HSV	hsv(204, 54%, 31%)
CMYK	cmyk(53.7%, 21.2%, 0%, 68.6%)
CIE-LAB	lab(25.34, -4.46, -13.36)
CIE-LCH	lch(25.34, 14.08, 251.53°)
OKLab	oklab(35.45% -0.0229 -0.0371)
OKLCH	oklch(35.45% 0.044 238.4)
XYZ	xyz(3.9879, 4.5272, 8.2516)
Luminance	0.0453 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253F50 #503625

analogous

#25504B #253F50 #252950

triadic

#253F50 #50253F #3F5025

tetradic

#253F50 #4B2550 #503625 #295025

square

#253F50 #4B2550 #503625 #295025

split-complementary

#253F50 #502529 #504B25

monochromatic

#0A1015 #121E26 #253F50 #38607A #4C81A4

Accessibility & contrast

On white

11.02

#253F50 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#253F50 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253F50

11.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253F50	#FFFFFF	#000000	##FFFFFF
##253F50	1.00	11.02	1.91	11.02
#FFFFFF	11.02	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373F51

Deuteranopia (green-blind)

#313A50

Tritanopia (blue-blind)

#104345

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #253f50;
/* rgb */ color: rgb(37, 63, 80);
/* oklch */ color: oklch(35.4% 0.044 238.4);

Tailwind

colors: {
  custom: {
    50: '#637481',
    500: '#253f50',
    950: '#000000',
  },
}

SCSS

$custom: #253f50;
$custom-light: #637481;
$custom-dark: #000000;

JSON

{
  "hex": "#253f50",
  "rgb": {
    "r": 37,
    "g": 63,
    "b": 80
  },
  "hsl": {
    "h": 203.721,
    "s": 36.752,
    "l": 22.941
  },
  "oklch": {
    "l": 0.35448,
    "c": 0.0436,
    "h": 238.4
  },
  "luminance": 0.04528
}

Semantic roles & 50–950 ramp

primary

#253F50

secondary

#83634E

accent

#885BCD

background

#F6F7F7

surface

#EBEDEE

border

#C6C8C9

text

#05080A

muted

#7A7B7C

Preview Lab

Preview with #253F50

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

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