#257CC6#257CC6

#257CC6 is a mid, vivid cyan. Relative luminance 0.189; OKLCH L 57.3% C 0.139 H 249.0°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#257CC6
RGB	rgb(37, 124, 198)
HSL	hsl(208, 69%, 46%)
HSV	hsv(208, 81%, 78%)
CMYK	cmyk(81.3%, 37.4%, 0%, 22.4%)
CIE-LAB	lab(50.55, 1.12, -45.60)
CIE-LCH	lch(50.55, 45.61, 271.41°)
OKLab	oklab(57.29% -0.0499 -0.1301)
OKLCH	oklch(57.29% 0.139 249)
XYZ	xyz(18.1597, 18.8836, 56.1029)
Luminance	0.1889 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257CC6 #C66F25

analogous

#25C6BF #257CC6 #252BC6

triadic

#257CC6 #C6257C #7CC625

tetradic

#257CC6 #BF25C6 #C66F25 #2BC625

square

#257CC6 #BF25C6 #C66F25 #2BC625

split-complementary

#257CC6 #C6252B #C6BF25

monochromatic

#123B5F #1B5C92 #257CC6 #4B9ADD #7EB7E7

Accessibility & contrast

On white

4.40

#257CC6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#257CC6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #257CC6

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257CC6	#FFFFFF	#000000	##000000
##257CC6	1.00	4.40	4.78	4.78
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5980C9

Deuteranopia (green-blind)

#4072C5

Tritanopia (blue-blind)

#008E97

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #257cc6;
/* rgb */ color: rgb(37, 124, 198);
/* oklch */ color: oklch(57.3% 0.139 249.0);

Tailwind

colors: {
  custom: {
    50: '#7aa1d8',
    500: '#257cc6',
    950: '#000000',
  },
}

SCSS

$custom: #257cc6;
$custom-light: #7aa1d8;
$custom-dark: #000000;

JSON

{
  "hex": "#257cc6",
  "rgb": {
    "r": 37,
    "g": 124,
    "b": 198
  },
  "hsl": {
    "h": 207.578,
    "s": 68.511,
    "l": 46.078
  },
  "oklch": {
    "l": 0.57295,
    "c": 0.13933,
    "h": 249
  },
  "luminance": 0.18886
}

Semantic roles & 50–950 ramp

primary

#257CC6

secondary

#CFA077

accent

#8D3CEB

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #257CC6

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

Preview Lab → · Contrast checker → · Palette generator →