#4C90DB#4C90DB

#4C90DB is a light, vivid cyan. Relative luminance 0.266; OKLCH L 64.3% C 0.133 H 252.6°. Best body text is #000000 at 6.32:1 contrast (WCAG AA passes).

Color values

HEX	#4C90DB
RGB	rgb(76, 144, 219)
HSL	hsl(211, 67%, 58%)
HSV	hsv(211, 65%, 86%)
CMYK	cmyk(65.3%, 34.2%, 0%, 14.1%)
CIE-LAB	lab(58.60, 1.93, -44.64)
CIE-LCH	lch(58.60, 44.68, 272.47°)
OKLab	oklab(64.29% -0.0398 -0.1265)
OKLCH	oklch(64.29% 0.133 252.6)
XYZ	xyz(25.7352, 26.5949, 70.7812)
Luminance	0.2660 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C90DB #DB974C

analogous

#4CD7DB #4C90DB #504CDB

triadic

#4C90DB #DB4C90 #90DB4C

tetradic

#4C90DB #DB4CD7 #DB974C #4CDB50

square

#4C90DB #DB4CD7 #DB974C #4CDB50

split-complementary

#4C90DB #DB504C #D7DB4C

monochromatic

#1D5390 #2771C3 #4C90DB #7FB0E5 #B2CFEF

Accessibility & contrast

On white

3.32

#4C90DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.32

#4C90DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4C90DB

6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C90DB	#FFFFFF	#000000	##000000
##4C90DB	1.00	3.32	6.32	6.32
#FFFFFF	3.32	1.00	21.00	21.00
#000000	6.32	21.00	1.00	1.00
##000000	6.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F94DE

Deuteranopia (green-blind)

#5B87D9

Tritanopia (blue-blind)

#00A1AB

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #4c90db;
/* rgb */ color: rgb(76, 144, 219);
/* oklch */ color: oklch(64.3% 0.133 252.6);

Tailwind

colors: {
  custom: {
    50: '#8cb0e6',
    500: '#4c90db',
    950: '#000000',
  },
}

SCSS

$custom: #4c90db;
$custom-light: #8cb0e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4c90db",
  "rgb": {
    "r": 76,
    "g": 144,
    "b": 219
  },
  "hsl": {
    "h": 211.469,
    "s": 66.512,
    "l": 57.843
  },
  "oklch": {
    "l": 0.6429,
    "c": 0.13264,
    "h": 252.6
  },
  "luminance": 0.26597
}

Semantic roles & 50–950 ramp

primary

#4C90DB

secondary

#DEC3A5

accent

#983EE9

background

#F9FAFE

surface

#F1F4FC

border

#CBCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #4C90DB

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

Preview Lab → · Contrast checker → · Palette generator →