#257BA0#257BA0

#257BA0 is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.0% C 0.097 H 231.3°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#257BA0
RGB	rgb(37, 123, 160)
HSL	hsl(198, 62%, 39%)
HSV	hsv(198, 77%, 63%)
CMYK	cmyk(76.9%, 23.1%, 0%, 37.3%)
CIE-LAB	lab(48.38, -12.26, -27.04)
CIE-LCH	lch(48.38, 29.69, 245.61°)
OKLab	oklab(54.97% -0.0609 -0.0761)
OKLCH	oklch(54.97% 0.097 231.3)
XYZ	xyz(14.1885, 17.0956, 35.8029)
Luminance	0.1710 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257BA0 #A04A25

analogous

#25A087 #257BA0 #253DA0

triadic

#257BA0 #A0257B #7BA025

tetradic

#257BA0 #8725A0 #A04A25 #3DA025

square

#257BA0 #8725A0 #A04A25 #3DA025

split-complementary

#257BA0 #A0253D #A08725

monochromatic

#0E2F3D #1A556E #257BA0 #32A0D0 #64B7DB

Accessibility & contrast

On white

4.75

#257BA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#257BA0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257BA0

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257BA0	#FFFFFF	#000000	##FFFFFF
##257BA0	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6879A2

Deuteranopia (green-blind)

#586E9F

Tritanopia (blue-blind)

#008587

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #257ba0;
/* rgb */ color: rgb(37, 123, 160);
/* oklch */ color: oklch(55.0% 0.097 231.3);

Tailwind

colors: {
  custom: {
    50: '#72a1bc',
    500: '#257ba0',
    950: '#000000',
  },
}

SCSS

$custom: #257ba0;
$custom-light: #72a1bc;
$custom-dark: #000000;

JSON

{
  "hex": "#257ba0",
  "rgb": {
    "r": 37,
    "g": 123,
    "b": 160
  },
  "hsl": {
    "h": 198.049,
    "s": 62.437,
    "l": 38.627
  },
  "oklch": {
    "l": 0.54965,
    "c": 0.09745,
    "h": 231.3
  },
  "luminance": 0.17097
}

Semantic roles & 50–950 ramp

primary

#257BA0

secondary

#C17D60

accent

#7342E6

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #257BA0

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

Preview Lab → · Contrast checker → · Palette generator →