#4A90EF#4A90EF

#4A90EF is a light, vivid cyan. Relative luminance 0.276; OKLCH L 65.4% C 0.159 H 256.7°. Best body text is #000000 at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#4A90EF
RGB	rgb(74, 144, 239)
HSL	hsl(215, 84%, 61%)
HSV	hsv(215, 69%, 94%)
CMYK	cmyk(69%, 39.7%, 0%, 6.3%)
CIE-LAB	lab(59.55, 8.49, -54.24)
CIE-LCH	lch(59.55, 54.90, 278.90°)
OKLab	oklab(65.35% -0.0364 -0.1547)
OKLCH	oklch(65.35% 0.159 256.7)
XYZ	xyz(28.3716, 27.6314, 85.4828)
Luminance	0.2763 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4A90EF #EFA94A

analogous

#4AE3EF #4A90EF #574AEF

triadic

#4A90EF #EF4A90 #90EF4A

tetradic

#4A90EF #EF4AE3 #EFA94A #4AEF57

square

#4A90EF #EF4AE3 #EFA94A #4AEF57

split-complementary

#4A90EF #EF574A #E3EF4A

monochromatic

#0F53AF #146EE7 #4A90EF #82B2F4 #BAD5F9

Accessibility & contrast

On white

3.22

#4A90EF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.53

#4A90EF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4A90EF

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4A90EF	#FFFFFF	#000000	##000000
##4A90EF	1.00	3.22	6.53	6.53
#FFFFFF	3.22	1.00	21.00	21.00
#000000	6.53	21.00	1.00	1.00
##000000	6.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6498F3

Deuteranopia (green-blind)

#4A88ED

Tritanopia (blue-blind)

#00A6B4

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #4a90ef;
/* rgb */ color: rgb(74, 144, 239);
/* oklch */ color: oklch(65.4% 0.159 256.7);

Tailwind

colors: {
  custom: {
    50: '#8eb0f5',
    500: '#4a90ef',
    950: '#000000',
  },
}

SCSS

$custom: #4a90ef;
$custom-light: #8eb0f5;
$custom-dark: #000000;

JSON

{
  "hex": "#4a90ef",
  "rgb": {
    "r": 74,
    "g": 144,
    "b": 239
  },
  "hsl": {
    "h": 214.545,
    "s": 83.756,
    "l": 61.373
  },
  "oklch": {
    "l": 0.65351,
    "c": 0.1589,
    "h": 256.7
  },
  "luminance": 0.27634
}

Semantic roles & 50–950 ramp

primary

#4A90EF

secondary

#E9CFAC

accent

#8305E0

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #4A90EF

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

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