#237ED4#237ED4

#237ED4 is a mid, vivid cyan. Relative luminance 0.200; OKLCH L 58.6% C 0.155 H 251.6°. Best body text is #000000 at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#237ED4
RGB	rgb(35, 126, 212)
HSL	hsl(209, 72%, 48%)
HSV	hsv(209, 83%, 83%)
CMYK	cmyk(83.5%, 40.6%, 0%, 16.9%)
CIE-LAB	lab(51.87, 5.01, -51.46)
CIE-LCH	lch(51.87, 51.70, 275.56°)
OKLab	oklab(58.57% -0.049 -0.1473)
OKLCH	oklch(58.57% 0.155 251.6)
XYZ	xyz(20.0331, 20.0300, 65.0849)
Luminance	0.2003 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237ED4 #D47923

analogous

#23D4D1 #237ED4 #2325D4

triadic

#237ED4 #D4237E #7ED423

tetradic

#237ED4 #D123D4 #D47923 #25D423

square

#237ED4 #D123D4 #D47923 #25D423

split-complementary

#237ED4 #D42325 #D4D123

monochromatic

#12406B #1A5F9F #237ED4 #529CE2 #86BAEB

Accessibility & contrast

On white

4.19

#237ED4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.01

#237ED4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #237ED4

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237ED4	#FFFFFF	#000000	##000000
##237ED4	1.00	4.19	5.01	5.01
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.01	21.00	1.00	1.00
##000000	5.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5384D7

Deuteranopia (green-blind)

#3574D2

Tritanopia (blue-blind)

#00939F

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #237ed4;
/* rgb */ color: rgb(35, 126, 212);
/* oklch */ color: oklch(58.6% 0.155 251.6);

Tailwind

colors: {
  custom: {
    50: '#7ca2e2',
    500: '#237ed4',
    950: '#000000',
  },
}

SCSS

$custom: #237ed4;
$custom-light: #7ca2e2;
$custom-dark: #000000;

JSON

{
  "hex": "#237ed4",
  "rgb": {
    "r": 35,
    "g": 126,
    "b": 212
  },
  "hsl": {
    "h": 209.153,
    "s": 71.66,
    "l": 48.431
  },
  "oklch": {
    "l": 0.58569,
    "c": 0.1552,
    "h": 251.6
  },
  "luminance": 0.20032
}

Semantic roles & 50–950 ramp

primary

#237ED4

secondary

#D4A87E

accent

#9139EE

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0B0F15

muted

#7C7E83

Preview Lab

Preview with #237ED4

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

Preview Lab → · Contrast checker → · Palette generator →