#237FB0#237FB0

#237FB0 is a mid, moderate cyan. Relative luminance 0.187; OKLCH L 56.7% C 0.112 H 237.5°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#237FB0
RGB	rgb(35, 127, 176)
HSL	hsl(201, 67%, 41%)
HSV	hsv(201, 80%, 69%)
CMYK	cmyk(80.1%, 27.8%, 0%, 31%)
CIE-LAB	lab(50.30, -9.02, -33.36)
CIE-LCH	lch(50.30, 34.55, 254.86°)
OKLab	oklab(56.72% -0.06 -0.0943)
OKLCH	oklch(56.72% 0.112 237.5)
XYZ	xyz(16.1159, 18.6687, 43.8199)
Luminance	0.1867 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237FB0 #B05423

analogous

#23B09B #237FB0 #2339B0

triadic

#237FB0 #B0237F #7FB023

tetradic

#237FB0 #9B23B0 #B05423 #39B023

square

#237FB0 #9B23B0 #B05423 #39B023

split-complementary

#237FB0 #B02339 #B09B23

monochromatic

#0F354A #195A7D #237FB0 #39A0D8 #6CB9E2

Accessibility & contrast

On white

4.44

#237FB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#237FB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #237FB0

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237FB0	#FFFFFF	#000000	##000000
##237FB0	1.00	4.44	4.73	4.73
#FFFFFF	4.44	1.00	21.00	21.00
#000000	4.73	21.00	1.00	1.00
##000000	4.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#677FB2

Deuteranopia (green-blind)

#5572AF

Tritanopia (blue-blind)

#008C90

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #237fb0;
/* rgb */ color: rgb(35, 127, 176);
/* oklch */ color: oklch(56.7% 0.112 237.5);

Tailwind

colors: {
  custom: {
    50: '#75a4c8',
    500: '#237fb0',
    950: '#000000',
  },
}

SCSS

$custom: #237fb0;
$custom-light: #75a4c8;
$custom-dark: #000000;

JSON

{
  "hex": "#237fb0",
  "rgb": {
    "r": 35,
    "g": 127,
    "b": 176
  },
  "hsl": {
    "h": 200.851,
    "s": 66.825,
    "l": 41.373
  },
  "oklch": {
    "l": 0.56719,
    "c": 0.11179,
    "h": 237.5
  },
  "luminance": 0.18671
}

Semantic roles & 50–950 ramp

primary

#237FB0

secondary

#C88967

accent

#7A3EEA

background

#F7FAFC

surface

#EEF3F8

border

#C9CDD1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #237FB0

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

Preview Lab → · Contrast checker → · Palette generator →