#257DAE#257DAE

#257DAE is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.2% C 0.110 H 238.3°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#257DAE
RGB	rgb(37, 125, 174)
HSL	hsl(201, 65%, 41%)
HSV	hsv(201, 79%, 68%)
CMYK	cmyk(78.7%, 28.2%, 0%, 31.8%)
CIE-LAB	lab(49.63, -8.37, -33.23)
CIE-LCH	lch(49.63, 34.27, 255.86°)
OKLab	oklab(56.17% -0.0579 -0.094)
OKLCH	oklch(56.17% 0.11 238.3)
XYZ	xyz(15.7335, 18.1146, 42.7034)
Luminance	0.1812 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257DAE #AE5625

analogous

#25AE9B #257DAE #2539AE

triadic

#257DAE #AE257D #7DAE25

tetradic

#257DAE #9B25AE #AE5625 #39AE25

square

#257DAE #9B25AE #AE5625 #39AE25

split-complementary

#257DAE #AE2539 #AE9B25

monochromatic

#103449 #1A597C #257DAE #3B9ED5 #6DB7E0

Accessibility & contrast

On white

4.54

#257DAE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#257DAE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #257DAE

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257DAE	#FFFFFF	#000000	##000000
##257DAE	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)

#667DB0

Deuteranopia (green-blind)

#5370AD

Tritanopia (blue-blind)

#00898E

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #257dae;
/* rgb */ color: rgb(37, 125, 174);
/* oklch */ color: oklch(56.2% 0.110 238.3);

Tailwind

colors: {
  custom: {
    50: '#75a2c6',
    500: '#257dae',
    950: '#000000',
  },
}

SCSS

$custom: #257dae;
$custom-light: #75a2c6;
$custom-dark: #000000;

JSON

{
  "hex": "#257dae",
  "rgb": {
    "r": 37,
    "g": 125,
    "b": 174
  },
  "hsl": {
    "h": 201.46,
    "s": 64.929,
    "l": 41.373
  },
  "oklch": {
    "l": 0.56174,
    "c": 0.1104,
    "h": 238.3
  },
  "luminance": 0.18117
}

Semantic roles & 50–950 ramp

primary

#257DAE

secondary

#C68A68

accent

#7C40E8

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0F13

muted

#7C7E82

Preview Lab

Preview with #257DAE

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

Preview Lab → · Contrast checker → · Palette generator →