#257AA4#257AA4

#257AA4 is a mid, moderate cyan. Relative luminance 0.170; OKLCH L 54.9% C 0.102 H 235.0°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#257AA4
RGB	rgb(37, 122, 164)
HSL	hsl(200, 63%, 39%)
HSV	hsv(200, 77%, 64%)
CMYK	cmyk(77.4%, 25.6%, 0%, 35.7%)
CIE-LAB	lab(48.25, -10.26, -29.58)
CIE-LCH	lch(48.25, 31.31, 250.88°)
OKLab	oklab(54.92% -0.0585 -0.0834)
OKLCH	oklch(54.92% 0.102 235)
XYZ	xyz(14.4206, 16.9910, 37.6343)
Luminance	0.1699 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257AA4 #A44F25

analogous

#25A48F #257AA4 #253AA4

triadic

#257AA4 #A4257A #7AA425

tetradic

#257AA4 #8F25A4 #A44F25 #3AA425

square

#257AA4 #8F25A4 #A44F25 #3AA425

split-complementary

#257AA4 #A4253A #A48F25

monochromatic

#0E3040 #1A5572 #257AA4 #359ED1 #67B6DD

Accessibility & contrast

On white

4.77

#257AA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#257AA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257AA4

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257AA4	#FFFFFF	#000000	##FFFFFF
##257AA4	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6679A6

Deuteranopia (green-blind)

#546DA3

Tritanopia (blue-blind)

#008588

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #257aa4;
/* rgb */ color: rgb(37, 122, 164);
/* oklch */ color: oklch(54.9% 0.102 235.0);

Tailwind

colors: {
  custom: {
    50: '#73a0bf',
    500: '#257aa4',
    950: '#000000',
  },
}

SCSS

$custom: #257aa4;
$custom-light: #73a0bf;
$custom-dark: #000000;

JSON

{
  "hex": "#257aa4",
  "rgb": {
    "r": 37,
    "g": 122,
    "b": 164
  },
  "hsl": {
    "h": 199.843,
    "s": 63.184,
    "l": 39.412
  },
  "oklch": {
    "l": 0.54919,
    "c": 0.10188,
    "h": 235
  },
  "luminance": 0.16993
}

Semantic roles & 50–950 ramp

primary

#257AA4

secondary

#C28262

accent

#7842E6

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #257AA4

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

Preview Lab → · Contrast checker → · Palette generator →