#257FA8#257FA8

#257FA8 is a mid, moderate cyan. Relative luminance 0.184; OKLCH L 56.4% C 0.103 H 233.0°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#257FA8
RGB	rgb(37, 127, 168)
HSL	hsl(199, 64%, 40%)
HSV	hsv(199, 78%, 66%)
CMYK	cmyk(78%, 24.4%, 0%, 34.1%)
CIE-LAB	lab(49.97, -11.69, -29.22)
CIE-LCH	lch(49.97, 31.47, 248.20°)
OKLab	oklab(56.35% -0.0619 -0.0823)
OKLCH	oklch(56.35% 0.103 233)
XYZ	xyz(15.4174, 18.3974, 39.7767)
Luminance	0.1840 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257FA8 #A84E25

analogous

#25A890 #257FA8 #253DA8

triadic

#257FA8 #A8257F #7FA825

tetradic

#257FA8 #9025A8 #A84E25 #3DA825

square

#257FA8 #9025A8 #A84E25 #3DA825

split-complementary

#257FA8 #A8253D #A89025

monochromatic

#0F3344 #1A5976 #257FA8 #37A2D3 #69BADE

Accessibility & contrast

On white

4.49

#257FA8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#257FA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #257FA8

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257FA8	#FFFFFF	#000000	##000000
##257FA8	1.00	4.49	4.68	4.68
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7EAA

Deuteranopia (green-blind)

#5971A7

Tritanopia (blue-blind)

#008A8D

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #257fa8;
/* rgb */ color: rgb(37, 127, 168);
/* oklch */ color: oklch(56.4% 0.103 233.0);

Tailwind

colors: {
  custom: {
    50: '#74a4c2',
    500: '#257fa8',
    950: '#000000',
  },
}

SCSS

$custom: #257fa8;
$custom-light: #74a4c2;
$custom-dark: #000000;

JSON

{
  "hex": "#257fa8",
  "rgb": {
    "r": 37,
    "g": 127,
    "b": 168
  },
  "hsl": {
    "h": 198.779,
    "s": 63.902,
    "l": 40.196
  },
  "oklch": {
    "l": 0.56354,
    "c": 0.10303,
    "h": 233
  },
  "luminance": 0.18399
}

Semantic roles & 50–950 ramp

primary

#257FA8

secondary

#C48365

accent

#7541E7

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #257FA8

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

Preview Lab → · Contrast checker → · Palette generator →