#4C90E4#4C90E4

#4C90E4 is a light, vivid cyan. Relative luminance 0.271; OKLCH L 64.8% C 0.144 H 254.9°. Best body text is #000000 at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#4C90E4
RGB	rgb(76, 144, 228)
HSL	hsl(213, 74%, 60%)
HSV	hsv(213, 67%, 89%)
CMYK	cmyk(66.7%, 36.8%, 0%, 10.6%)
CIE-LAB	lab(59.05, 5.00, -48.94)
CIE-LCH	lch(59.05, 49.19, 275.83°)
OKLab	oklab(64.79% -0.0375 -0.1391)
OKLCH	oklch(64.79% 0.144 254.9)
XYZ	xyz(26.9522, 27.0817, 77.1906)
Luminance	0.2708 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C90E4 #E4A04C

analogous

#4CDCE4 #4C90E4 #544CE4

triadic

#4C90E4 #E44C90 #90E44C

tetradic

#4C90E4 #E44CDC #E4A04C #4CE454

square

#4C90E4 #E44CDC #E4A04C #4CE454

split-complementary

#4C90E4 #E4544C #DCE44C

monochromatic

#18549E #2070D3 #4C90E4 #81B1EC #B6D2F4

Accessibility & contrast

On white

3.27

#4C90E4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.42

#4C90E4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4C90E4

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C90E4	#FFFFFF	#000000	##000000
##4C90E4	1.00	3.27	6.42	6.42
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.42	21.00	1.00	1.00
##000000	6.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B96E7

Deuteranopia (green-blind)

#5488E2

Tritanopia (blue-blind)

#00A3AF

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #4c90e4;
/* rgb */ color: rgb(76, 144, 228);
/* oklch */ color: oklch(64.8% 0.144 254.9);

Tailwind

colors: {
  custom: {
    50: '#8db0ed',
    500: '#4c90e4',
    950: '#000000',
  },
}

SCSS

$custom: #4c90e4;
$custom-light: #8db0ed;
$custom-dark: #000000;

JSON

{
  "hex": "#4c90e4",
  "rgb": {
    "r": 76,
    "g": 144,
    "b": 228
  },
  "hsl": {
    "h": 213.158,
    "s": 73.786,
    "l": 59.608
  },
  "oklch": {
    "l": 0.64791,
    "c": 0.14408,
    "h": 254.9
  },
  "luminance": 0.27084
}

Semantic roles & 50–950 ramp

primary

#4C90E4

secondary

#E3C9A8

accent

#9E37F0

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #4C90E4

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

Preview Lab → · Contrast checker → · Palette generator →