#253C5B#253C5B

#253C5B is a dark, moderate cyan. Relative luminance 0.044; OKLCH L 35.3% C 0.062 H 256.2°. Best body text is #FFFFFF at 11.19:1 contrast (WCAG AA passes).

Color values

HEX	#253C5B
RGB	rgb(37, 60, 91)
HSL	hsl(214, 42%, 25%)
HSV	hsv(214, 59%, 36%)
CMYK	cmyk(59.3%, 34.1%, 0%, 64.3%)
CIE-LAB	lab(24.89, 1.45, -21.26)
CIE-LCH	lch(24.89, 21.31, 273.90°)
OKLab	oklab(35.27% -0.0147 -0.0599)
OKLCH	oklch(35.27% 0.062 256.2)
XYZ	xyz(4.2665, 4.3800, 10.5161)
Luminance	0.0438 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253C5B #5B4425

analogous

#25575B #253C5B #29255B

triadic

#253C5B #5B253C #3C5B25

tetradic

#253C5B #5B2557 #5B4425 #255B29

square

#253C5B #5B2557 #5B4425 #255B29

split-complementary

#253C5B #5B2925 #575B25

monochromatic

#090E16 #131F2F #253C5B #375987 #4875B2

Accessibility & contrast

On white

11.19

#253C5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#253C5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253C5B

11.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253C5B	#FFFFFF	#000000	##FFFFFF
##253C5B	1.00	11.19	1.88	11.19
#FFFFFF	11.19	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F3E5C

Deuteranopia (green-blind)

#29395A

Tritanopia (blue-blind)

#034347

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #253c5b;
/* rgb */ color: rgb(37, 60, 91);
/* oklch */ color: oklch(35.3% 0.062 256.2);

Tailwind

colors: {
  custom: {
    50: '#647189',
    500: '#253c5b',
    950: '#000000',
  },
}

SCSS

$custom: #253c5b;
$custom-light: #647189;
$custom-dark: #000000;

JSON

{
  "hex": "#253c5b",
  "rgb": {
    "r": 37,
    "g": 60,
    "b": 91
  },
  "hsl": {
    "h": 214.444,
    "s": 42.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.3527,
    "c": 0.06167,
    "h": 256.2
  },
  "luminance": 0.0438
}

Semantic roles & 50–950 ramp

primary

#253C5B

secondary

#8E734D

accent

#9D56D2

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070B

muted

#7A7A7C

Preview Lab

Preview with #253C5B

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

Preview Lab → · Contrast checker → · Palette generator →