#257CA8#257CA8

#257CA8 is a mid, moderate cyan. Relative luminance 0.176; OKLCH L 55.6% C 0.105 H 235.7°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#257CA8
RGB	rgb(37, 124, 168)
HSL	hsl(200, 64%, 40%)
HSV	hsv(200, 78%, 66%)
CMYK	cmyk(78%, 26.2%, 0%, 34.1%)
CIE-LAB	lab(49.05, -9.97, -30.67)
CIE-LCH	lch(49.05, 32.25, 251.99°)
OKLab	oklab(55.62% -0.059 -0.0865)
OKLCH	oklch(55.62% 0.105 235.7)
XYZ	xyz(15.0357, 17.6340, 39.6495)
Luminance	0.1764 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257CA8 #A85125

analogous

#25A893 #257CA8 #253AA8

triadic

#257CA8 #A8257C #7CA825

tetradic

#257CA8 #9325A8 #A85125 #3AA825

square

#257CA8 #9325A8 #A85125 #3AA825

split-complementary

#257CA8 #A8253A #A89325

monochromatic

#0F3244 #1A5776 #257CA8 #379FD3 #69B7DE

Accessibility & contrast

On white

4.64

#257CA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#257CA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #257CA8

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257CA8	#FFFFFF	#000000	##FFFFFF
##257CA8	1.00	4.64	4.53	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#677BAA

Deuteranopia (green-blind)

#556FA7

Tritanopia (blue-blind)

#00878B

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #257ca8;
/* rgb */ color: rgb(37, 124, 168);
/* oklch */ color: oklch(55.6% 0.105 235.7);

Tailwind

colors: {
  custom: {
    50: '#74a1c2',
    500: '#257ca8',
    950: '#000000',
  },
}

SCSS

$custom: #257ca8;
$custom-light: #74a1c2;
$custom-dark: #000000;

JSON

{
  "hex": "#257ca8",
  "rgb": {
    "r": 37,
    "g": 124,
    "b": 168
  },
  "hsl": {
    "h": 200.153,
    "s": 63.902,
    "l": 40.196
  },
  "oklch": {
    "l": 0.55616,
    "c": 0.10475,
    "h": 235.7
  },
  "luminance": 0.17636
}

Semantic roles & 50–950 ramp

primary

#257CA8

secondary

#C48565

accent

#7941E7

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#090F12

muted

#7B7E81

Preview Lab

Preview with #257CA8

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

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