#55B4DF#55B4DF

#55B4DF is a light, moderate cyan. Relative luminance 0.399; OKLCH L 73.0% C 0.109 H 230.4°. Best body text is #000000 at 8.98:1 contrast (WCAG AA passes).

Color values

HEX	#55B4DF
RGB	rgb(85, 180, 223)
HSL	hsl(199, 68%, 60%)
HSV	hsv(199, 62%, 87%)
CMYK	cmyk(61.9%, 19.3%, 0%, 12.5%)
CIE-LAB	lab(69.40, -15.32, -29.97)
CIE-LCH	lch(69.40, 33.66, 242.93°)
OKLab	oklab(72.97% -0.0694 -0.0838)
OKLCH	oklch(72.97% 0.109 230.4)
XYZ	xyz(33.3817, 39.8982, 75.7396)
Luminance	0.3990 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55B4DF #DF8055

analogous

#55DFC5 #55B4DF #556FDF

triadic

#55B4DF #DF55B4 #B4DF55

tetradic

#55B4DF #C555DF #DF8055 #6FDF55

square

#55B4DF #C555DF #DF8055 #6FDF55

split-complementary

#55B4DF #DF556F #DFC555

monochromatic

#1D759C #279BD0 #55B4DF #89CBE9 #BCE1F2

Accessibility & contrast

On white

2.34

#55B4DF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.98

#55B4DF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #55B4DF

8.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55B4DF	#FFFFFF	#000000	##000000
##55B4DF	1.00	2.34	8.98	8.98
#FFFFFF	2.34	1.00	21.00	21.00
#000000	8.98	21.00	1.00	1.00
##000000	8.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EB2E1

Deuteranopia (green-blind)

#8BA3DE

Tritanopia (blue-blind)

#00C0C2

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #55b4df;
/* rgb */ color: rgb(85, 180, 223);
/* oklch */ color: oklch(73.0% 0.109 230.4);

Tailwind

colors: {
  custom: {
    50: '#91cae9',
    500: '#55b4df',
    950: '#000000',
  },
}

SCSS

$custom: #55b4df;
$custom-light: #91cae9;
$custom-dark: #000000;

JSON

{
  "hex": "#55b4df",
  "rgb": {
    "r": 85,
    "g": 180,
    "b": 223
  },
  "hsl": {
    "h": 198.696,
    "s": 68.317,
    "l": 60.392
  },
  "oklch": {
    "l": 0.72972,
    "c": 0.1088,
    "h": 230.4
  },
  "luminance": 0.39902
}

Semantic roles & 50–950 ramp

primary

#55B4DF

secondary

#E2BEAE

accent

#5015D0

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #55B4DF

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

Preview Lab → · Contrast checker → · Palette generator →