#4C90CC#4C90CC

#4C90CC is a light, moderate cyan. Relative luminance 0.258; OKLCH L 63.5% C 0.114 H 247.3°. Best body text is #000000 at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#4C90CC
RGB	rgb(76, 144, 204)
HSL	hsl(208, 56%, 55%)
HSV	hsv(208, 63%, 80%)
CMYK	cmyk(62.7%, 29.4%, 0%, 20%)
CIE-LAB	lab(57.89, -3.11, -37.35)
CIE-LCH	lch(57.89, 37.48, 265.25°)
OKLab	oklab(63.5% -0.044 -0.1053)
OKLCH	oklch(63.5% 0.114 247.3)
XYZ	xyz(23.8488, 25.8403, 60.8459)
Luminance	0.2584 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C90CC #CC884C

analogous

#4CCCC8 #4C90CC #4C50CC

triadic

#4C90CC #CC4C90 #90CC4C

tetradic

#4C90CC #C84CCC #CC884C #50CC4C

square

#4C90CC #C84CCC #CC884C #50CC4C

split-complementary

#4C90CC #CC4C50 #CCC84C

monochromatic

#23527B #3171AA #4C90CC #7CAEDA #ABCBE7

Accessibility & contrast

On white

3.40

#4C90CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.17

#4C90CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4C90CC

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C90CC	#FFFFFF	#000000	##000000
##4C90CC	1.00	3.40	6.17	6.17
#FFFFFF	3.40	1.00	21.00	21.00
#000000	6.17	21.00	1.00	1.00
##000000	6.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7692CF

Deuteranopia (green-blind)

#6585CB

Tritanopia (blue-blind)

#009EA5

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #4c90cc;
/* rgb */ color: rgb(76, 144, 204);
/* oklch */ color: oklch(63.5% 0.114 247.3);

Tailwind

colors: {
  custom: {
    50: '#8ab0dc',
    500: '#4c90cc',
    950: '#000000',
  },
}

SCSS

$custom: #4c90cc;
$custom-light: #8ab0dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4c90cc",
  "rgb": {
    "r": 76,
    "g": 144,
    "b": 204
  },
  "hsl": {
    "h": 208.125,
    "s": 55.652,
    "l": 54.902
  },
  "oklch": {
    "l": 0.63497,
    "c": 0.11414,
    "h": 247.3
  },
  "luminance": 0.25843
}

Semantic roles & 50–950 ramp

primary

#4C90CC

secondary

#D5B89F

accent

#8F49DF

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0D1015

muted

#7D7F83

Preview Lab

Preview with #4C90CC

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

Preview Lab → · Contrast checker → · Palette generator →