#237EC4#237EC4

#237EC4 is a mid, vivid cyan. Relative luminance 0.193; OKLCH L 57.6% C 0.135 H 247.0°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#237EC4
RGB	rgb(35, 126, 196)
HSL	hsl(206, 70%, 45%)
HSV	hsv(206, 82%, 77%)
CMYK	cmyk(82.1%, 35.7%, 0%, 23.1%)
CIE-LAB	lab(50.99, -1.03, -43.75)
CIE-LCH	lch(50.99, 43.77, 268.66°)
OKLab	oklab(57.6% -0.053 -0.1247)
OKLCH	oklch(57.6% 0.135 247)
XYZ	xyz(18.1139, 19.2623, 54.9771)
Luminance	0.1926 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237EC4 #C46923

analogous

#23C4B9 #237EC4 #232DC4

triadic

#237EC4 #C4237E #7EC423

tetradic

#237EC4 #B923C4 #C46923 #2DC423

square

#237EC4 #B923C4 #C46923 #2DC423

split-complementary

#237EC4 #C4232D #C4B923

monochromatic

#103B5C #1A5D90 #237EC4 #469CDE #7AB8E7

Accessibility & contrast

On white

4.33

#237EC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#237EC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #237EC4

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237EC4	#FFFFFF	#000000	##000000
##237EC4	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D81C7

Deuteranopia (green-blind)

#4573C3

Tritanopia (blue-blind)

#008F98

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #237ec4;
/* rgb */ color: rgb(35, 126, 196);
/* oklch */ color: oklch(57.6% 0.135 247.0);

Tailwind

colors: {
  custom: {
    50: '#79a3d6',
    500: '#237ec4',
    950: '#000000',
  },
}

SCSS

$custom: #237ec4;
$custom-light: #79a3d6;
$custom-dark: #000000;

JSON

{
  "hex": "#237ec4",
  "rgb": {
    "r": 35,
    "g": 126,
    "b": 196
  },
  "hsl": {
    "h": 206.087,
    "s": 69.697,
    "l": 45.294
  },
  "oklch": {
    "l": 0.57595,
    "c": 0.13547,
    "h": 247
  },
  "luminance": 0.19265
}

Semantic roles & 50–950 ramp

primary

#237EC4

secondary

#CF9B74

accent

#883BED

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0F14

muted

#7C7E83

Preview Lab

Preview with #237EC4

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

Preview Lab → · Contrast checker → · Palette generator →