#55B3DD#55B3DD

#55B3DD is a light, moderate cyan. Relative luminance 0.394; OKLCH L 72.7% C 0.107 H 230.0°. Best body text is #000000 at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#55B3DD
RGB	rgb(85, 179, 221)
HSL	hsl(199, 67%, 60%)
HSV	hsv(199, 62%, 87%)
CMYK	cmyk(61.5%, 19%, 0%, 13.3%)
CIE-LAB	lab(69.03, -15.41, -29.44)
CIE-LCH	lch(69.03, 33.23, 242.38°)
OKLab	oklab(72.66% -0.0691 -0.0822)
OKLCH	oklch(72.66% 0.107 230)
XYZ	xyz(32.9125, 39.3887, 74.2609)
Luminance	0.3939 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55B3DD #DD7F55

analogous

#55DDC3 #55B3DD #556FDD

triadic

#55B3DD #DD55B3 #B3DD55

tetradic

#55B3DD #C355DD #DD7F55 #6FDD55

square

#55B3DD #C355DD #DD7F55 #6FDD55

split-complementary

#55B3DD #DD556F #DDC355

monochromatic

#1F7399 #299ACC #55B3DD #88CAE7 #BBE1F1

Accessibility & contrast

On white

2.37

#55B3DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.88

#55B3DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #55B3DD

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55B3DD	#FFFFFF	#000000	##000000
##55B3DD	1.00	2.37	8.88	8.88
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.88	21.00	1.00	1.00
##000000	8.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EB0DF

Deuteranopia (green-blind)

#8BA2DC

Tritanopia (blue-blind)

#00BFC1

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #55b3dd;
/* rgb */ color: rgb(85, 179, 221);
/* oklch */ color: oklch(72.7% 0.107 230.0);

Tailwind

colors: {
  custom: {
    50: '#91c9e7',
    500: '#55b3dd',
    950: '#000000',
  },
}

SCSS

$custom: #55b3dd;
$custom-light: #91c9e7;
$custom-dark: #000000;

JSON

{
  "hex": "#55b3dd",
  "rgb": {
    "r": 85,
    "g": 179,
    "b": 221
  },
  "hsl": {
    "h": 198.529,
    "s": 66.667,
    "l": 60
  },
  "oklch": {
    "l": 0.72656,
    "c": 0.10741,
    "h": 230
  },
  "luminance": 0.39392
}

Semantic roles & 50–950 ramp

primary

#55B3DD

secondary

#E1BDAD

accent

#733EEA

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #55B3DD

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

Preview Lab → · Contrast checker → · Palette generator →