#257EA7#257EA7

#257EA7 is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.1% C 0.103 H 233.3°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#257EA7
RGB	rgb(37, 126, 167)
HSL	hsl(199, 64%, 40%)
HSV	hsv(199, 78%, 65%)
CMYK	cmyk(77.8%, 24.6%, 0%, 34.5%)
CIE-LAB	lab(49.62, -11.48, -29.19)
CIE-LCH	lch(49.62, 31.37, 248.54°)
OKLab	oklab(56.06% -0.0613 -0.0822)
OKLCH	oklch(56.06% 0.103 233.3)
XYZ	xyz(15.1960, 18.1032, 39.2451)
Luminance	0.1810 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257EA7 #A74E25

analogous

#25A78F #257EA7 #253DA7

triadic

#257EA7 #A7257E #7EA725

tetradic

#257EA7 #8F25A7 #A74E25 #3DA725

square

#257EA7 #8F25A7 #A74E25 #3DA725

split-complementary

#257EA7 #A7253D #A78F25

monochromatic

#0F3243 #1A5875 #257EA7 #37A1D3 #69B9DE

Accessibility & contrast

On white

4.54

#257EA7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#257EA7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #257EA7

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257EA7	#FFFFFF	#000000	##000000
##257EA7	1.00	4.54	4.62	4.62
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7DA9

Deuteranopia (green-blind)

#5871A6

Tritanopia (blue-blind)

#00898C

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #257ea7;
/* rgb */ color: rgb(37, 126, 167);
/* oklch */ color: oklch(56.1% 0.103 233.3);

Tailwind

colors: {
  custom: {
    50: '#74a3c1',
    500: '#257ea7',
    950: '#000000',
  },
}

SCSS

$custom: #257ea7;
$custom-light: #74a3c1;
$custom-dark: #000000;

JSON

{
  "hex": "#257ea7",
  "rgb": {
    "r": 37,
    "g": 126,
    "b": 167
  },
  "hsl": {
    "h": 198.923,
    "s": 63.725,
    "l": 40
  },
  "oklch": {
    "l": 0.56057,
    "c": 0.1026,
    "h": 233.3
  },
  "luminance": 0.18105
}

Semantic roles & 50–950 ramp

primary

#257EA7

secondary

#C48264

accent

#7541E7

background

#F7FAFB

surface

#EEF3F7

border

#C9CDD0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #257EA7

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

Preview Lab → · Contrast checker → · Palette generator →