#237CA0#237CA0

#237CA0 is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.2% C 0.098 H 230.0°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#237CA0
RGB	rgb(35, 124, 160)
HSL	hsl(197, 64%, 38%)
HSV	hsv(197, 78%, 63%)
CMYK	cmyk(78.1%, 22.5%, 0%, 37.3%)
CIE-LAB	lab(48.65, -13.07, -26.63)
CIE-LCH	lch(48.65, 29.67, 243.86°)
OKLab	oklab(55.17% -0.0628 -0.0749)
OKLCH	oklch(55.17% 0.098 230)
XYZ	xyz(14.2434, 17.3090, 35.8412)
Luminance	0.1731 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237CA0 #A04723

analogous

#23A085 #237CA0 #233DA0

triadic

#237CA0 #A0237C #7CA023

tetradic

#237CA0 #8523A0 #A04723 #3DA023

square

#237CA0 #8523A0 #A04723 #3DA023

split-complementary

#237CA0 #A0233D #A08523

monochromatic

#0D2E3C #18556E #237CA0 #2FA3D1 #61B9DC

Accessibility & contrast

On white

4.71

#237CA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#237CA0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #237CA0

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237CA0	#FFFFFF	#000000	##FFFFFF
##237CA0	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	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: #237ca0;
/* rgb */ color: rgb(35, 124, 160);
/* oklch */ color: oklch(55.2% 0.098 230.0);

Tailwind

colors: {
  custom: {
    50: '#72a2bc',
    500: '#237ca0',
    950: '#000000',
  },
}

SCSS

$custom: #237ca0;
$custom-light: #72a2bc;
$custom-dark: #000000;

JSON

{
  "hex": "#237ca0",
  "rgb": {
    "r": 35,
    "g": 124,
    "b": 160
  },
  "hsl": {
    "h": 197.28,
    "s": 64.103,
    "l": 38.235
  },
  "oklch": {
    "l": 0.55165,
    "c": 0.09775,
    "h": 230
  },
  "luminance": 0.17311
}

Semantic roles & 50–950 ramp

primary

#237CA0

secondary

#C17A5D

accent

#7141E7

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090F12

muted

#7B7E81

Preview Lab

Preview with #237CA0

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

Preview Lab → · Contrast checker → · Palette generator →