#257BC6#257BC6

#257BC6 is a mid, vivid cyan. Relative luminance 0.186; OKLCH L 57.1% C 0.140 H 249.5°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#257BC6
RGB	rgb(37, 123, 198)
HSL	hsl(208, 69%, 46%)
HSV	hsv(208, 81%, 78%)
CMYK	cmyk(81.3%, 37.9%, 0%, 22.4%)
CIE-LAB	lab(50.26, 1.73, -46.06)
CIE-LCH	lch(50.26, 46.10, 272.15°)
OKLab	oklab(57.06% -0.0491 -0.1315)
OKLCH	oklch(57.06% 0.14 249.5)
XYZ	xyz(18.0351, 18.6342, 56.0614)
Luminance	0.1864 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257BC6 #C67025

analogous

#25C6C0 #257BC6 #252BC6

triadic

#257BC6 #C6257B #7BC625

tetradic

#257BC6 #C025C6 #C67025 #2BC625

square

#257BC6 #C025C6 #C67025 #2BC625

split-complementary

#257BC6 #C6252B #C6C025

monochromatic

#123B5F #1B5B92 #257BC6 #4B99DD #7EB6E7

Accessibility & contrast

On white

4.44

#257BC6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#257BC6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #257BC6

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257BC6	#FFFFFF	#000000	##000000
##257BC6	1.00	4.44	4.73	4.73
#FFFFFF	4.44	1.00	21.00	21.00
#000000	4.73	21.00	1.00	1.00
##000000	4.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#577FC9

Deuteranopia (green-blind)

#3E71C5

Tritanopia (blue-blind)

#008D97

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #257bc6;
/* rgb */ color: rgb(37, 123, 198);
/* oklch */ color: oklch(57.1% 0.140 249.5);

Tailwind

colors: {
  custom: {
    50: '#7aa0d8',
    500: '#257bc6',
    950: '#000000',
  },
}

SCSS

$custom: #257bc6;
$custom-light: #7aa0d8;
$custom-dark: #000000;

JSON

{
  "hex": "#257bc6",
  "rgb": {
    "r": 37,
    "g": 123,
    "b": 198
  },
  "hsl": {
    "h": 207.95,
    "s": 68.511,
    "l": 46.078
  },
  "oklch": {
    "l": 0.57064,
    "c": 0.14033,
    "h": 249.5
  },
  "luminance": 0.18636
}

Semantic roles & 50–950 ramp

primary

#257BC6

secondary

#CFA077

accent

#8E3CEB

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #257BC6

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

Preview Lab → · Contrast checker → · Palette generator →