#55ADE4#55ADE4

#55ADE4 is a light, moderate cyan. Relative luminance 0.374; OKLCH L 71.6% C 0.117 H 238.8°. Best body text is #000000 at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#55ADE4
RGB	rgb(85, 173, 228)
HSL	hsl(203, 73%, 61%)
HSV	hsv(203, 63%, 89%)
CMYK	cmyk(62.7%, 24.1%, 0%, 10.6%)
CIE-LAB	lab(67.59, -9.98, -35.51)
CIE-LCH	lch(67.59, 36.89, 254.30°)
OKLab	oklab(71.6% -0.0604 -0.0997)
OKLCH	oklch(71.6% 0.117 238.8)
XYZ	xyz(32.6881, 37.4166, 78.8832)
Luminance	0.3742 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55ADE4 #E48C55

analogous

#55E4D4 #55ADE4 #5566E4

triadic

#55ADE4 #E455AD #ADE455

tetradic

#55ADE4 #D455E4 #E48C55 #66E455

square

#55ADE4 #D455E4 #E48C55 #66E455

split-complementary

#55ADE4 #E45566 #E4D455

monochromatic

#1A6FA4 #2393D9 #55ADE4 #8AC6EC #BFE0F5

Accessibility & contrast

On white

2.48

#55ADE4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.48

#55ADE4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #55ADE4

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55ADE4	#FFFFFF	#000000	##000000
##55ADE4	1.00	2.48	8.48	8.48
#FFFFFF	2.48	1.00	21.00	21.00
#000000	8.48	21.00	1.00	1.00
##000000	8.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#94ADE7

Deuteranopia (green-blind)

#809EE3

Tritanopia (blue-blind)

#00BBC0

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #55ade4;
/* rgb */ color: rgb(85, 173, 228);
/* oklch */ color: oklch(71.6% 0.117 238.8);

Tailwind

colors: {
  custom: {
    50: '#92c5ec',
    500: '#55ade4',
    950: '#000000',
  },
}

SCSS

$custom: #55ade4;
$custom-light: #92c5ec;
$custom-dark: #000000;

JSON

{
  "hex": "#55ade4",
  "rgb": {
    "r": 85,
    "g": 173,
    "b": 228
  },
  "hsl": {
    "h": 203.077,
    "s": 72.589,
    "l": 61.373
  },
  "oklch": {
    "l": 0.71601,
    "c": 0.11659,
    "h": 238.8
  },
  "luminance": 0.3742
}

Semantic roles & 50–950 ramp

primary

#55ADE4

secondary

#E5C4B0

accent

#5C11D5

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #55ADE4

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

Preview Lab → · Contrast checker → · Palette generator →