#55B5EE#55B5EE

#55B5EE is a light, vivid cyan. Relative luminance 0.412; OKLCH L 73.9% C 0.122 H 237.7°. Best body text is #000000 at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#55B5EE
RGB	rgb(85, 181, 238)
HSL	hsl(202, 82%, 63%)
HSV	hsv(202, 64%, 93%)
CMYK	cmyk(64.3%, 23.9%, 0%, 6.7%)
CIE-LAB	lab(70.28, -11.15, -36.78)
CIE-LCH	lch(70.28, 38.44, 253.14°)
OKLab	oklab(73.87% -0.0653 -0.1033)
OKLCH	oklch(73.87% 0.122 237.7)
XYZ	xyz(35.6969, 41.1484, 86.9335)
Luminance	0.4115 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55B5EE #EE8E55

analogous

#55EEDA #55B5EE #5568EE

triadic

#55B5EE #EE55B5 #B5EE55

tetradic

#55B5EE #DA55EE #EE8E55 #68EE55

square

#55B5EE #DA55EE #EE8E55 #68EE55

split-complementary

#55B5EE #EE5568 #EEDA55

monochromatic

#1279B6 #1D9DE8 #55B5EE #8DCDF4 #C4E5F9

Accessibility & contrast

On white

2.28

#55B5EE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.23

#55B5EE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #55B5EE

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55B5EE	#FFFFFF	#000000	##000000
##55B5EE	1.00	2.28	9.23	9.23
#FFFFFF	2.28	1.00	21.00	21.00
#000000	9.23	21.00	1.00	1.00
##000000	9.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9AB4F1

Deuteranopia (green-blind)

#85A5ED

Tritanopia (blue-blind)

#00C4C8

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #55b5ee;
/* rgb */ color: rgb(85, 181, 238);
/* oklch */ color: oklch(73.9% 0.122 237.7);

Tailwind

colors: {
  custom: {
    50: '#93cbf3',
    500: '#55b5ee',
    950: '#000000',
  },
}

SCSS

$custom: #55b5ee;
$custom-light: #93cbf3;
$custom-dark: #000000;

JSON

{
  "hex": "#55b5ee",
  "rgb": {
    "r": 85,
    "g": 181,
    "b": 238
  },
  "hsl": {
    "h": 202.353,
    "s": 81.818,
    "l": 63.333
  },
  "oklch": {
    "l": 0.73871,
    "c": 0.12224,
    "h": 237.7
  },
  "luminance": 0.41152
}

Semantic roles & 50–950 ramp

primary

#55B5EE

secondary

#EBC8B4

accent

#5707DE

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1317

muted

#7E8285

Preview Lab

Preview with #55B5EE

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

Preview Lab → · Contrast checker → · Palette generator →