#257EA0#257EA0

#257EA0 is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 55.7% C 0.096 H 228.4°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#257EA0
RGB	rgb(37, 126, 160)
HSL	hsl(197, 62%, 39%)
HSV	hsv(197, 77%, 63%)
CMYK	cmyk(76.9%, 21.2%, 0%, 37.3%)
CIE-LAB	lab(49.32, -13.96, -25.59)
CIE-LCH	lch(49.32, 29.15, 241.39°)
OKLab	oklab(55.71% -0.0639 -0.0719)
OKLCH	oklch(55.71% 0.096 228.4)
XYZ	xyz(14.5664, 17.8513, 35.9288)
Luminance	0.1785 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257EA0 #A04725

analogous

#25A084 #257EA0 #2540A0

triadic

#257EA0 #A0257E #7EA025

tetradic

#257EA0 #8425A0 #A04725 #40A025

square

#257EA0 #8425A0 #A04725 #40A025

split-complementary

#257EA0 #A02540 #A08425

monochromatic

#0E303D #1A576E #257EA0 #32A4D0 #64BADB

Accessibility & contrast

On white

4.59

#257EA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#257EA0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #257EA0

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257EA0	#FFFFFF	#000000	##FFFFFF
##257EA0	1.00	4.59	4.57	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7CA2

Deuteranopia (green-blind)

#5C70A0

Tritanopia (blue-blind)

#008889

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #257ea0;
/* rgb */ color: rgb(37, 126, 160);
/* oklch */ color: oklch(55.7% 0.096 228.4);

Tailwind

colors: {
  custom: {
    50: '#73a3bc',
    500: '#257ea0',
    950: '#000000',
  },
}

SCSS

$custom: #257ea0;
$custom-light: #73a3bc;
$custom-dark: #000000;

JSON

{
  "hex": "#257ea0",
  "rgb": {
    "r": 37,
    "g": 126,
    "b": 160
  },
  "hsl": {
    "h": 196.585,
    "s": 62.437,
    "l": 38.627
  },
  "oklch": {
    "l": 0.55712,
    "c": 0.09618,
    "h": 228.4
  },
  "luminance": 0.17853
}

Semantic roles & 50–950 ramp

primary

#257EA0

secondary

#C17B60

accent

#6F42E6

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #257EA0

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

Preview Lab → · Contrast checker → · Palette generator →