#4A90E4#4A90E4

#4A90E4 is a light, vivid cyan. Relative luminance 0.270; OKLCH L 64.7% C 0.145 H 254.4°. Best body text is #000000 at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#4A90E4
RGB	rgb(74, 144, 228)
HSL	hsl(213, 74%, 59%)
HSV	hsv(213, 68%, 89%)
CMYK	cmyk(67.5%, 36.8%, 0%, 10.6%)
CIE-LAB	lab(58.98, 4.68, -49.06)
CIE-LCH	lch(58.98, 49.28, 275.45°)
OKLab	oklab(64.71% -0.0389 -0.1395)
OKLCH	oklch(64.71% 0.145 254.4)
XYZ	xyz(26.7958, 27.0010, 77.1833)
Luminance	0.2700 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4A90E4 #E49E4A

analogous

#4ADDE4 #4A90E4 #514AE4

triadic

#4A90E4 #E44A90 #90E44A

tetradic

#4A90E4 #E44ADD #E49E4A #4AE451

square

#4A90E4 #E44ADD #E49E4A #4AE451

split-complementary

#4A90E4 #E4514A #DDE44A

monochromatic

#17549C #1F70D2 #4A90E4 #7FB1EC #B5D1F4

Accessibility & contrast

On white

3.28

#4A90E4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.40

#4A90E4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4A90E4

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4A90E4	#FFFFFF	#000000	##000000
##4A90E4	1.00	3.28	6.40	6.40
#FFFFFF	3.28	1.00	21.00	21.00
#000000	6.40	21.00	1.00	1.00
##000000	6.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A96E7

Deuteranopia (green-blind)

#5487E2

Tritanopia (blue-blind)

#00A4AF

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #4a90e4;
/* rgb */ color: rgb(74, 144, 228);
/* oklch */ color: oklch(64.7% 0.145 254.4);

Tailwind

colors: {
  custom: {
    50: '#8cb0ed',
    500: '#4a90e4',
    950: '#000000',
  },
}

SCSS

$custom: #4a90e4;
$custom-light: #8cb0ed;
$custom-dark: #000000;

JSON

{
  "hex": "#4a90e4",
  "rgb": {
    "r": 74,
    "g": 144,
    "b": 228
  },
  "hsl": {
    "h": 212.727,
    "s": 74.038,
    "l": 59.216
  },
  "oklch": {
    "l": 0.64712,
    "c": 0.14483,
    "h": 254.4
  },
  "luminance": 0.27004
}

Semantic roles & 50–950 ramp

primary

#4A90E4

secondary

#E3C8A7

accent

#9C37F1

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #4A90E4

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

Preview Lab → · Contrast checker → · Palette generator →