#4A90DB#4A90DB

#4A90DB is a light, vivid cyan. Relative luminance 0.265; OKLCH L 64.2% C 0.133 H 252.0°. Best body text is #000000 at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#4A90DB
RGB	rgb(74, 144, 219)
HSL	hsl(211, 67%, 57%)
HSV	hsv(211, 66%, 86%)
CMYK	cmyk(66.2%, 34.2%, 0%, 14.1%)
CIE-LAB	lab(58.52, 1.60, -44.76)
CIE-LCH	lch(58.52, 44.79, 272.04°)
OKLab	oklab(64.21% -0.0412 -0.1269)
OKLCH	oklch(64.21% 0.133 252)
XYZ	xyz(25.5788, 26.5142, 70.7738)
Luminance	0.2652 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4A90DB #DB954A

analogous

#4AD9DB #4A90DB #4C4ADB

triadic

#4A90DB #DB4A90 #90DB4A

tetradic

#4A90DB #DB4AD9 #DB954A #4ADB4C

square

#4A90DB #DB4AD9 #DB954A #4ADB4C

split-complementary

#4A90DB #DB4C4A #D9DB4A

monochromatic

#1C538E #2671C1 #4A90DB #7DAFE5 #B0CFEF

Accessibility & contrast

On white

3.33

#4A90DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.30

#4A90DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4A90DB

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4A90DB	#FFFFFF	#000000	##000000
##4A90DB	1.00	3.33	6.30	6.30
#FFFFFF	3.33	1.00	21.00	21.00
#000000	6.30	21.00	1.00	1.00
##000000	6.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F94DE

Deuteranopia (green-blind)

#5B86DA

Tritanopia (blue-blind)

#00A1AB

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #4a90db;
/* rgb */ color: rgb(74, 144, 219);
/* oklch */ color: oklch(64.2% 0.133 252.0);

Tailwind

colors: {
  custom: {
    50: '#8bb0e6',
    500: '#4a90db',
    950: '#000000',
  },
}

SCSS

$custom: #4a90db;
$custom-light: #8bb0e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4a90db",
  "rgb": {
    "r": 74,
    "g": 144,
    "b": 219
  },
  "hsl": {
    "h": 211.034,
    "s": 66.82,
    "l": 57.451
  },
  "oklch": {
    "l": 0.6421,
    "c": 0.13345,
    "h": 252
  },
  "luminance": 0.26517
}

Semantic roles & 50–950 ramp

primary

#4A90DB

secondary

#DEC1A3

accent

#973EEA

background

#F9FAFE

surface

#F1F4FC

border

#CBCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #4A90DB

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

Preview Lab → · Contrast checker → · Palette generator →