#55B3F0#55B3F0

#55B3F0 is a light, vivid cyan. Relative luminance 0.405; OKLCH L 73.5% C 0.125 H 240.0°. Best body text is #000000 at 9.09:1 contrast (WCAG AA passes).

Color values

HEX	#55B3F0
RGB	rgb(85, 179, 240)
HSL	hsl(204, 84%, 64%)
HSV	hsv(204, 65%, 94%)
CMYK	cmyk(64.6%, 25.4%, 0%, 5.9%)
CIE-LAB	lab(69.80, -9.43, -38.62)
CIE-LCH	lch(69.80, 39.76, 256.28°)
OKLab	oklab(73.52% -0.0627 -0.1086)
OKLCH	oklch(73.52% 0.125 240)
XYZ	xyz(35.5886, 40.4591, 88.3550)
Luminance	0.4046 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55B3F0 #F09255

analogous

#55F0DF #55B3F0 #5565F0

triadic

#55B3F0 #F055B3 #B3F055

tetradic

#55B3F0 #DF55F0 #F09255 #65F055

square

#55B3F0 #DF55F0 #F09255 #65F055

split-complementary

#55B3F0 #F05565 #F0DF55

monochromatic

#1077BA #1D9AEB #55B3F0 #8DCCF5 #C5E5FA

Accessibility & contrast

On white

2.31

#55B3F0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.09

#55B3F0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #55B3F0

9.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55B3F0	#FFFFFF	#000000	##000000
##55B3F0	1.00	2.31	9.09	9.09
#FFFFFF	2.31	1.00	21.00	21.00
#000000	9.09	21.00	1.00	1.00
##000000	9.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#97B3F3

Deuteranopia (green-blind)

#82A4EF

Tritanopia (blue-blind)

#00C2C8

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #55b3f0;
/* rgb */ color: rgb(85, 179, 240);
/* oklch */ color: oklch(73.5% 0.125 240.0);

Tailwind

colors: {
  custom: {
    50: '#93c9f5',
    500: '#55b3f0',
    950: '#000000',
  },
}

SCSS

$custom: #55b3f0;
$custom-light: #93c9f5;
$custom-dark: #000000;

JSON

{
  "hex": "#55b3f0",
  "rgb": {
    "r": 85,
    "g": 179,
    "b": 240
  },
  "hsl": {
    "h": 203.613,
    "s": 83.784,
    "l": 63.725
  },
  "oklch": {
    "l": 0.73515,
    "c": 0.12543,
    "h": 240
  },
  "luminance": 0.40463
}

Semantic roles & 50–950 ramp

primary

#55B3F0

secondary

#ECCBB5

accent

#5B05E0

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1317

muted

#7E8285

Preview Lab

Preview with #55B3F0

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

Preview Lab → · Contrast checker → · Palette generator →