#237CB0#237CB0

#237CB0 is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 56.0% C 0.114 H 239.9°. Best body text is #000000 at 4.58:1 contrast (WCAG AA passes).

Color values

HEX	#237CB0
RGB	rgb(35, 124, 176)
HSL	hsl(202, 67%, 41%)
HSV	hsv(202, 80%, 69%)
CMYK	cmyk(80.1%, 29.5%, 0%, 31%)
CIE-LAB	lab(49.38, -7.28, -34.79)
CIE-LCH	lch(49.38, 35.55, 258.19°)
OKLab	oklab(55.99% -0.0572 -0.0985)
OKLCH	oklch(55.99% 0.114 239.9)
XYZ	xyz(15.7342, 17.9053, 43.6927)
Luminance	0.1791 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237CB0 #B05723

analogous

#23B09E #237CB0 #2335B0

triadic

#237CB0 #B0237C #7CB023

tetradic

#237CB0 #9E23B0 #B05723 #35B023

square

#237CB0 #9E23B0 #B05723 #35B023

split-complementary

#237CB0 #B02335 #B09E23

monochromatic

#0F344A #19587D #237CB0 #399DD8 #6CB6E2

Accessibility & contrast

On white

4.58

#237CB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#237CB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #237CB0

4.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237CB0	#FFFFFF	#000000	##000000
##237CB0	1.00	4.58	4.58	4.58
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.58	21.00	1.00	1.00
##000000	4.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#637DB2

Deuteranopia (green-blind)

#5070AF

Tritanopia (blue-blind)

#00898E

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #237cb0;
/* rgb */ color: rgb(35, 124, 176);
/* oklch */ color: oklch(56.0% 0.114 239.9);

Tailwind

colors: {
  custom: {
    50: '#75a1c8',
    500: '#237cb0',
    950: '#000000',
  },
}

SCSS

$custom: #237cb0;
$custom-light: #75a1c8;
$custom-dark: #000000;

JSON

{
  "hex": "#237cb0",
  "rgb": {
    "r": 35,
    "g": 124,
    "b": 176
  },
  "hsl": {
    "h": 202.128,
    "s": 66.825,
    "l": 41.373
  },
  "oklch": {
    "l": 0.55991,
    "c": 0.11394,
    "h": 239.9
  },
  "luminance": 0.17907
}

Semantic roles & 50–950 ramp

primary

#237CB0

secondary

#C88B67

accent

#7D3EEA

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0F13

muted

#7C7E82

Preview Lab

Preview with #237CB0

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

Preview Lab → · Contrast checker → · Palette generator →