#237CD4#237CD4

#237CD4 is a mid, vivid cyan. Relative luminance 0.195; OKLCH L 58.1% C 0.157 H 252.5°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#237CD4
RGB	rgb(35, 124, 212)
HSL	hsl(210, 72%, 48%)
HSV	hsv(210, 83%, 83%)
CMYK	cmyk(83.5%, 41.5%, 0%, 16.9%)
CIE-LAB	lab(51.29, 6.24, -52.38)
CIE-LCH	lch(51.29, 52.75, 276.79°)
OKLab	oklab(58.12% -0.0474 -0.15)
OKLCH	oklch(58.12% 0.157 252.5)
XYZ	xyz(19.7800, 19.5236, 65.0005)
Luminance	0.1953 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237CD4 #D47B23

analogous

#23D4D3 #237CD4 #2323D4

triadic

#237CD4 #D4237C #7CD423

tetradic

#237CD4 #D323D4 #D47B23 #23D423

square

#237CD4 #D323D4 #D47B23 #23D423

split-complementary

#237CD4 #D42323 #D4D323

monochromatic

#123F6B #1A5D9F #237CD4 #529BE2 #86B9EB

Accessibility & contrast

On white

4.28

#237CD4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#237CD4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #237CD4

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237CD4	#FFFFFF	#000000	##000000
##237CD4	1.00	4.28	4.91	4.91
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5083D7

Deuteranopia (green-blind)

#3073D2

Tritanopia (blue-blind)

#00919D

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #237cd4;
/* rgb */ color: rgb(35, 124, 212);
/* oklch */ color: oklch(58.1% 0.157 252.5);

Tailwind

colors: {
  custom: {
    50: '#7ca1e2',
    500: '#237cd4',
    950: '#000000',
  },
}

SCSS

$custom: #237cd4;
$custom-light: #7ca1e2;
$custom-dark: #000000;

JSON

{
  "hex": "#237cd4",
  "rgb": {
    "r": 35,
    "g": 124,
    "b": 212
  },
  "hsl": {
    "h": 209.831,
    "s": 71.66,
    "l": 48.431
  },
  "oklch": {
    "l": 0.58119,
    "c": 0.15732,
    "h": 252.5
  },
  "luminance": 0.19526
}

Semantic roles & 50–950 ramp

primary

#237CD4

secondary

#D4A97E

accent

#9339EE

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0B0E15

muted

#7C7E83

Preview Lab

Preview with #237CD4

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

Preview Lab → · Contrast checker → · Palette generator →