#4C90CB#4C90CB

#4C90CB is a light, moderate cyan. Relative luminance 0.258; OKLCH L 63.4% C 0.113 H 246.9°. Best body text is #000000 at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#4C90CB
RGB	rgb(76, 144, 203)
HSL	hsl(208, 55%, 55%)
HSV	hsv(208, 63%, 80%)
CMYK	cmyk(62.6%, 29.1%, 0%, 20.4%)
CIE-LAB	lab(57.84, -3.44, -36.86)
CIE-LCH	lch(57.84, 37.02, 264.67°)
OKLab	oklab(63.45% -0.0443 -0.1039)
OKLCH	oklch(63.45% 0.113 246.9)
XYZ	xyz(23.7293, 25.7925, 60.2163)
Luminance	0.2580 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C90CB #CB874C

analogous

#4CCBC6 #4C90CB #4C51CB

triadic

#4C90CB #CB4C90 #90CB4C

tetradic

#4C90CB #C64CCB #CB874C #51CB4C

square

#4C90CB #C64CCB #CB874C #51CB4C

split-complementary

#4C90CB #CB4C51 #CBC64C

monochromatic

#235179 #3171A9 #4C90CB #7BADD9 #ABCBE7

Accessibility & contrast

On white

3.41

#4C90CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.16

#4C90CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4C90CB

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C90CB	#FFFFFF	#000000	##000000
##4C90CB	1.00	3.41	6.16	6.16
#FFFFFF	3.41	1.00	21.00	21.00
#000000	6.16	21.00	1.00	1.00
##000000	6.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7692CE

Deuteranopia (green-blind)

#6585CA

Tritanopia (blue-blind)

#009EA5

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #4c90cb;
/* rgb */ color: rgb(76, 144, 203);
/* oklch */ color: oklch(63.4% 0.113 246.9);

Tailwind

colors: {
  custom: {
    50: '#89b0db',
    500: '#4c90cb',
    950: '#000000',
  },
}

SCSS

$custom: #4c90cb;
$custom-light: #89b0db;
$custom-dark: #000000;

JSON

{
  "hex": "#4c90cb",
  "rgb": {
    "r": 76,
    "g": 144,
    "b": 203
  },
  "hsl": {
    "h": 207.874,
    "s": 54.978,
    "l": 54.706
  },
  "oklch": {
    "l": 0.63446,
    "c": 0.11295,
    "h": 246.9
  },
  "luminance": 0.25795
}

Semantic roles & 50–950 ramp

primary

#4C90CB

secondary

#D4B89F

accent

#8F49DE

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0D1015

muted

#7D7F83

Preview Lab

Preview with #4C90CB

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

Preview Lab → · Contrast checker → · Palette generator →