#257BA8#257BA8

#257BA8 is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.4% C 0.105 H 236.6°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#257BA8
RGB	rgb(37, 123, 168)
HSL	hsl(201, 64%, 40%)
HSV	hsv(201, 78%, 66%)
CMYK	cmyk(78%, 26.8%, 0%, 34.1%)
CIE-LAB	lab(48.74, -9.39, -31.15)
CIE-LCH	lch(48.74, 32.53, 253.22°)
OKLab	oklab(55.37% -0.0581 -0.0879)
OKLCH	oklch(55.37% 0.105 236.6)
XYZ	xyz(14.9110, 17.3846, 39.6079)
Luminance	0.1739 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257BA8 #A85225

analogous

#25A894 #257BA8 #2539A8

triadic

#257BA8 #A8257B #7BA825

tetradic

#257BA8 #9425A8 #A85225 #39A825

square

#257BA8 #9425A8 #A85225 #39A825

split-complementary

#257BA8 #A82539 #A89425

monochromatic

#0F3244 #1A5676 #257BA8 #379DD3 #69B6DE

Accessibility & contrast

On white

4.69

#257BA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#257BA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257BA8

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257BA8	#FFFFFF	#000000	##FFFFFF
##257BA8	1.00	4.69	4.48	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#657BAA

Deuteranopia (green-blind)

#546EA7

Tritanopia (blue-blind)

#00878A

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #257ba8;
/* rgb */ color: rgb(37, 123, 168);
/* oklch */ color: oklch(55.4% 0.105 236.6);

Tailwind

colors: {
  custom: {
    50: '#74a1c2',
    500: '#257ba8',
    950: '#000000',
  },
}

SCSS

$custom: #257ba8;
$custom-light: #74a1c2;
$custom-dark: #000000;

JSON

{
  "hex": "#257ba8",
  "rgb": {
    "r": 37,
    "g": 123,
    "b": 168
  },
  "hsl": {
    "h": 200.611,
    "s": 63.902,
    "l": 40.196
  },
  "oklch": {
    "l": 0.55371,
    "c": 0.10538,
    "h": 236.6
  },
  "luminance": 0.17386
}

Semantic roles & 50–950 ramp

primary

#257BA8

secondary

#C48565

accent

#7A41E7

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #257BA8

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

Preview Lab → · Contrast checker → · Palette generator →