#237AD4#237AD4

#237AD4 is a mid, vivid cyan. Relative luminance 0.190; OKLCH L 57.7% C 0.159 H 253.3°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#237AD4
RGB	rgb(35, 122, 212)
HSL	hsl(211, 72%, 48%)
HSV	hsv(211, 83%, 83%)
CMYK	cmyk(83.5%, 42.5%, 0%, 16.9%)
CIE-LAB	lab(50.72, 7.47, -53.30)
CIE-LCH	lch(50.72, 53.82, 277.98°)
OKLab	oklab(57.67% -0.0458 -0.1527)
OKLCH	oklch(57.67% 0.159 253.3)
XYZ	xyz(19.5319, 19.0274, 64.9178)
Luminance	0.1903 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237AD4 #D47D23

analogous

#23D2D4 #237AD4 #2423D4

triadic

#237AD4 #D4237A #7AD423

tetradic

#237AD4 #D423D2 #D47D23 #23D424

square

#237AD4 #D423D2 #D47D23 #23D424

split-complementary

#237AD4 #D42423 #D2D423

monochromatic

#123E6B #1A5C9F #237AD4 #5299E2 #86B8EB

Accessibility & contrast

On white

4.37

#237AD4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#237AD4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #237AD4

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237AD4	#FFFFFF	#000000	##000000
##237AD4	1.00	4.37	4.81	4.81
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C81D8

Deuteranopia (green-blind)

#2A72D2

Tritanopia (blue-blind)

#00909C

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #237ad4;
/* rgb */ color: rgb(35, 122, 212);
/* oklch */ color: oklch(57.7% 0.159 253.3);

Tailwind

colors: {
  custom: {
    50: '#7c9fe2',
    500: '#237ad4',
    950: '#000000',
  },
}

SCSS

$custom: #237ad4;
$custom-light: #7c9fe2;
$custom-dark: #000000;

JSON

{
  "hex": "#237ad4",
  "rgb": {
    "r": 35,
    "g": 122,
    "b": 212
  },
  "hsl": {
    "h": 210.508,
    "s": 71.66,
    "l": 48.431
  },
  "oklch": {
    "l": 0.57671,
    "c": 0.15948,
    "h": 253.3
  },
  "luminance": 0.1903
}

Semantic roles & 50–950 ramp

primary

#237AD4

secondary

#D4AA7E

accent

#9539EE

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0B0E15

muted

#7C7E83

Preview Lab

Preview with #237AD4

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

Preview Lab → · Contrast checker → · Palette generator →