#55B5E9#55B5E9

#55B5E9 is a light, moderate cyan. Relative luminance 0.409; OKLCH L 73.6% C 0.117 H 235.2°. Best body text is #000000 at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#55B5E9
RGB	rgb(85, 181, 233)
HSL	hsl(201, 77%, 62%)
HSV	hsv(201, 64%, 91%)
CMYK	cmyk(63.5%, 22.3%, 0%, 8.6%)
CIE-LAB	lab(70.08, -12.73, -34.38)
CIE-LCH	lch(70.08, 36.66, 249.68°)
OKLab	oklab(73.64% -0.067 -0.0964)
OKLCH	oklch(73.64% 0.117 235.2)
XYZ	xyz(34.9725, 40.8587, 83.1184)
Luminance	0.4086 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55B5E9 #E98955

analogous

#55E9D3 #55B5E9 #556BE9

triadic

#55B5E9 #E955B5 #B5E955

tetradic

#55B5E9 #D355E9 #E98955 #6BE955

square

#55B5E9 #D355E9 #E98955 #6BE955

split-complementary

#55B5E9 #E9556B #E9D355

monochromatic

#1678AD #1F9DE2 #55B5E9 #8BCDF0 #C1E4F7

Accessibility & contrast

On white

2.29

#55B5E9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.17

#55B5E9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #55B5E9

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55B5E9	#FFFFFF	#000000	##000000
##55B5E9	1.00	2.29	9.17	9.17
#FFFFFF	2.29	1.00	21.00	21.00
#000000	9.17	21.00	1.00	1.00
##000000	9.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CB4EB

Deuteranopia (green-blind)

#88A5E8

Tritanopia (blue-blind)

#00C3C6

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #55b5e9;
/* rgb */ color: rgb(85, 181, 233);
/* oklch */ color: oklch(73.6% 0.117 235.2);

Tailwind

colors: {
  custom: {
    50: '#93cbf0',
    500: '#55b5e9',
    950: '#000000',
  },
}

SCSS

$custom: #55b5e9;
$custom-light: #93cbf0;
$custom-dark: #000000;

JSON

{
  "hex": "#55b5e9",
  "rgb": {
    "r": 85,
    "g": 181,
    "b": 233
  },
  "hsl": {
    "h": 201.081,
    "s": 77.083,
    "l": 62.353
  },
  "oklch": {
    "l": 0.73643,
    "c": 0.11739,
    "h": 235.2
  },
  "luminance": 0.40862
}

Semantic roles & 50–950 ramp

primary

#55B5E9

secondary

#E8C5B2

accent

#540CD9

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #55B5E9

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

Preview Lab → · Contrast checker → · Palette generator →