#55B3DF#55B3DF

#55B3DF is a light, moderate cyan. Relative luminance 0.395; OKLCH L 72.7% C 0.109 H 231.2°. Best body text is #000000 at 8.90:1 contrast (WCAG AA passes).

Color values

HEX	#55B3DF
RGB	rgb(85, 179, 223)
HSL	hsl(199, 68%, 60%)
HSV	hsv(199, 62%, 87%)
CMYK	cmyk(61.9%, 19.7%, 0%, 12.5%)
CIE-LAB	lab(69.11, -14.79, -30.42)
CIE-LCH	lch(69.11, 33.82, 244.07°)
OKLab	oklab(72.74% -0.0684 -0.085)
OKLCH	oklch(72.74% 0.109 231.2)
XYZ	xyz(33.1805, 39.4959, 75.6726)
Luminance	0.3950 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55B3DF #DF8155

analogous

#55DFC6 #55B3DF #556EDF

triadic

#55B3DF #DF55B3 #B3DF55

tetradic

#55B3DF #C655DF #DF8155 #6EDF55

square

#55B3DF #C655DF #DF8155 #6EDF55

split-complementary

#55B3DF #DF556E #DFC655

monochromatic

#1D749C #279AD0 #55B3DF #89CAE9 #BCE1F2

Accessibility & contrast

On white

2.36

#55B3DF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.90

#55B3DF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #55B3DF

8.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55B3DF	#FFFFFF	#000000	##000000
##55B3DF	1.00	2.36	8.90	8.90
#FFFFFF	2.36	1.00	21.00	21.00
#000000	8.90	21.00	1.00	1.00
##000000	8.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DB1E1

Deuteranopia (green-blind)

#8AA2DE

Tritanopia (blue-blind)

#00BFC1

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #55b3df;
/* rgb */ color: rgb(85, 179, 223);
/* oklch */ color: oklch(72.7% 0.109 231.2);

Tailwind

colors: {
  custom: {
    50: '#91c9e9',
    500: '#55b3df',
    950: '#000000',
  },
}

SCSS

$custom: #55b3df;
$custom-light: #91c9e9;
$custom-dark: #000000;

JSON

{
  "hex": "#55b3df",
  "rgb": {
    "r": 85,
    "g": 179,
    "b": 223
  },
  "hsl": {
    "h": 199.13,
    "s": 68.317,
    "l": 60.392
  },
  "oklch": {
    "l": 0.72743,
    "c": 0.10912,
    "h": 231.2
  },
  "luminance": 0.39499
}

Semantic roles & 50–950 ramp

primary

#55B3DF

secondary

#E2BEAE

accent

#5115D0

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #55B3DF

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

Preview Lab → · Contrast checker → · Palette generator →