#257EA9#257EA9

#257EA9 is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.2% C 0.105 H 234.6°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#257EA9
RGB	rgb(37, 126, 169)
HSL	hsl(200, 64%, 40%)
HSV	hsv(200, 78%, 66%)
CMYK	cmyk(78.1%, 25.4%, 0%, 33.7%)
CIE-LAB	lab(49.71, -10.76, -30.21)
CIE-LCH	lch(49.71, 32.07, 250.40°)
OKLab	oklab(56.16% -0.0606 -0.0852)
OKLCH	oklch(56.16% 0.105 234.6)
XYZ	xyz(15.3824, 18.1777, 40.2264)
Luminance	0.1818 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257EA9 #A95025

analogous

#25A992 #257EA9 #253CA9

triadic

#257EA9 #A9257E #7EA925

tetradic

#257EA9 #9225A9 #A95025 #3CA925

square

#257EA9 #9225A9 #A95025 #3CA925

split-complementary

#257EA9 #A9253C #A99225

monochromatic

#0F3345 #1A5977 #257EA9 #38A1D3 #6AB8DE

Accessibility & contrast

On white

4.53

#257EA9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#257EA9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #257EA9

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257EA9	#FFFFFF	#000000	##000000
##257EA9	1.00	4.53	4.64	4.64
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#697DAB

Deuteranopia (green-blind)

#5771A8

Tritanopia (blue-blind)

#00898D

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #257ea9;
/* rgb */ color: rgb(37, 126, 169);
/* oklch */ color: oklch(56.2% 0.105 234.6);

Tailwind

colors: {
  custom: {
    50: '#74a3c2',
    500: '#257ea9',
    950: '#000000',
  },
}

SCSS

$custom: #257ea9;
$custom-light: #74a3c2;
$custom-dark: #000000;

JSON

{
  "hex": "#257ea9",
  "rgb": {
    "r": 37,
    "g": 126,
    "b": 169
  },
  "hsl": {
    "h": 199.545,
    "s": 64.078,
    "l": 40.392
  },
  "oklch": {
    "l": 0.56158,
    "c": 0.10457,
    "h": 234.6
  },
  "luminance": 0.1818
}

Semantic roles & 50–950 ramp

primary

#257EA9

secondary

#C48465

accent

#7741E7

background

#F7FAFB

surface

#EEF3F7

border

#C9CDD0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #257EA9

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

Preview Lab → · Contrast checker → · Palette generator →