#257CA0#257CA0

#257CA0 is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.2% C 0.097 H 230.3°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#257CA0
RGB	rgb(37, 124, 160)
HSL	hsl(198, 62%, 39%)
HSV	hsv(198, 77%, 63%)
CMYK	cmyk(76.9%, 22.5%, 0%, 37.3%)
CIE-LAB	lab(48.69, -12.83, -26.56)
CIE-LCH	lch(48.69, 29.50, 244.21°)
OKLab	oklab(55.21% -0.0619 -0.0747)
OKLCH	oklch(55.21% 0.097 230.3)
XYZ	xyz(14.3132, 17.3450, 35.8444)
Luminance	0.1735 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257CA0 #A04925

analogous

#25A086 #257CA0 #253EA0

triadic

#257CA0 #A0257C #7CA025

tetradic

#257CA0 #8625A0 #A04925 #3EA025

square

#257CA0 #8625A0 #A04925 #3EA025

split-complementary

#257CA0 #A0253E #A08625

monochromatic

#0E2F3D #1A556E #257CA0 #32A2D0 #64B8DB

Accessibility & contrast

On white

4.70

#257CA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#257CA0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257CA0

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257CA0	#FFFFFF	#000000	##FFFFFF
##257CA0	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7AA2

Deuteranopia (green-blind)

#596E9F

Tritanopia (blue-blind)

#008688

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #257ca0;
/* rgb */ color: rgb(37, 124, 160);
/* oklch */ color: oklch(55.2% 0.097 230.3);

Tailwind

colors: {
  custom: {
    50: '#72a2bc',
    500: '#257ca0',
    950: '#000000',
  },
}

SCSS

$custom: #257ca0;
$custom-light: #72a2bc;
$custom-dark: #000000;

JSON

{
  "hex": "#257ca0",
  "rgb": {
    "r": 37,
    "g": 124,
    "b": 160
  },
  "hsl": {
    "h": 197.561,
    "s": 62.437,
    "l": 38.627
  },
  "oklch": {
    "l": 0.55214,
    "c": 0.097,
    "h": 230.3
  },
  "luminance": 0.17347
}

Semantic roles & 50–950 ramp

primary

#257CA0

secondary

#C17C60

accent

#7242E6

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090F12

muted

#7B7E81

Preview Lab

Preview with #257CA0

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

Preview Lab → · Contrast checker → · Palette generator →