#257C91#257C91

#257C91 is a mid, moderate cyan. Relative luminance 0.169; OKLCH L 54.5% C 0.086 H 217.6°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#257C91
RGB	rgb(37, 124, 145)
HSL	hsl(192, 59%, 36%)
HSV	hsv(192, 74%, 57%)
CMYK	cmyk(74.5%, 14.5%, 0%, 43.1%)
CIE-LAB	lab(48.07, -18.04, -18.72)
CIE-LCH	lch(48.07, 25.99, 226.07°)
OKLab	oklab(54.51% -0.0678 -0.0522)
OKLCH	oklch(54.51% 0.086 217.6)
XYZ	xyz(13.0793, 16.8514, 29.3459)
Luminance	0.1685 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257C91 #913A25

analogous

#259170 #257C91 #254691

triadic

#257C91 #91257C #7C9125

tetradic

#257C91 #702591 #913A25 #469125

square

#257C91 #702591 #913A25 #469125

split-complementary

#257C91 #912546 #917025

monochromatic

#0C292F #195260 #257C91 #31A6C2 #5BBDD5

Accessibility & contrast

On white

4.80

#257C91 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#257C91 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257C91

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257C91	#FFFFFF	#000000	##FFFFFF
##257C91	1.00	4.80	4.37	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7892

Deuteranopia (green-blind)

#606D91

Tritanopia (blue-blind)

#008383

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #257c91;
/* rgb */ color: rgb(37, 124, 145);
/* oklch */ color: oklch(54.5% 0.086 217.6);

Tailwind

colors: {
  custom: {
    50: '#70a2b1',
    500: '#257c91',
    950: '#000000',
  },
}

SCSS

$custom: #257c91;
$custom-light: #70a2b1;
$custom-dark: #000000;

JSON

{
  "hex": "#257c91",
  "rgb": {
    "r": 37,
    "g": 124,
    "b": 145
  },
  "hsl": {
    "h": 191.667,
    "s": 59.341,
    "l": 35.686
  },
  "oklch": {
    "l": 0.54512,
    "c": 0.08562,
    "h": 217.6
  },
  "luminance": 0.16853
}

Semantic roles & 50–950 ramp

primary

#257C91

secondary

#BA6B58

accent

#6445E3

background

#F7F9FA

surface

#EDF2F5

border

#C8CCCF

text

#090F10

muted

#7B7E7F

Preview Lab

Preview with #257C91

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

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