#257D90#257D90

#257D90 is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 54.7% C 0.085 H 215.5°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#257D90
RGB	rgb(37, 125, 144)
HSL	hsl(191, 59%, 35%)
HSV	hsv(191, 74%, 56%)
CMYK	cmyk(74.3%, 13.2%, 0%, 43.5%)
CIE-LAB	lab(48.35, -18.92, -17.70)
CIE-LCH	lch(48.35, 25.91, 223.11°)
OKLab	oklab(54.72% -0.0693 -0.0494)
OKLCH	oklch(54.72% 0.085 215.5)
XYZ	xyz(13.1285, 17.0726, 28.9836)
Luminance	0.1707 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257D90 #903825

analogous

#25906D #257D90 #254790

triadic

#257D90 #90257D #7D9025

tetradic

#257D90 #6D2590 #903825 #479025

square

#257D90 #6D2590 #903825 #479025

split-complementary

#257D90 #902547 #906D25

monochromatic

#0C282F #18535F #257D90 #32A7C1 #5BBFD5

Accessibility & contrast

On white

4.76

#257D90 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#257D90 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257D90

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257D90	#FFFFFF	#000000	##FFFFFF
##257D90	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#707991

Deuteranopia (green-blind)

#616E90

Tritanopia (blue-blind)

#008483

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #257d90;
/* rgb */ color: rgb(37, 125, 144);
/* oklch */ color: oklch(54.7% 0.085 215.5);

Tailwind

colors: {
  custom: {
    50: '#70a3b0',
    500: '#257d90',
    950: '#000000',
  },
}

SCSS

$custom: #257d90;
$custom-light: #70a3b0;
$custom-dark: #000000;

JSON

{
  "hex": "#257d90",
  "rgb": {
    "r": 37,
    "g": 125,
    "b": 144
  },
  "hsl": {
    "h": 190.654,
    "s": 59.116,
    "l": 35.49
  },
  "oklch": {
    "l": 0.54724,
    "c": 0.08509,
    "h": 215.5
  },
  "luminance": 0.17074
}

Semantic roles & 50–950 ramp

primary

#257D90

secondary

#B96957

accent

#6145E2

background

#F7FAFA

surface

#EDF3F4

border

#C8CDCE

text

#090F10

muted

#7B7F7F

Preview Lab

Preview with #257D90

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

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