#55B1DF#55B1DF

#55B1DF is a light, moderate cyan. Relative luminance 0.387; OKLCH L 72.3% C 0.110 H 232.9°. Best body text is #000000 at 8.74:1 contrast (WCAG AA passes).

Color values

HEX	#55B1DF
RGB	rgb(85, 177, 223)
HSL	hsl(200, 68%, 60%)
HSV	hsv(200, 62%, 87%)
CMYK	cmyk(61.9%, 20.6%, 0%, 12.5%)
CIE-LAB	lab(68.53, -13.72, -31.31)
CIE-LCH	lch(68.53, 34.18, 246.33°)
OKLab	oklab(72.29% -0.0663 -0.0876)
OKLCH	oklch(72.29% 0.11 232.9)
XYZ	xyz(32.7826, 38.7000, 75.5399)
Luminance	0.3870 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55B1DF #DF8355

analogous

#55DFC8 #55B1DF #556CDF

triadic

#55B1DF #DF55B1 #B1DF55

tetradic

#55B1DF #C855DF #DF8355 #6CDF55

square

#55B1DF #C855DF #DF8355 #6CDF55

split-complementary

#55B1DF #DF556C #DFC855

monochromatic

#1D729C #2798D0 #55B1DF #89C9E9 #BCE0F2

Accessibility & contrast

On white

2.40

#55B1DF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.74

#55B1DF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #55B1DF

8.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55B1DF	#FFFFFF	#000000	##000000
##55B1DF	1.00	2.40	8.74	8.74
#FFFFFF	2.40	1.00	21.00	21.00
#000000	8.74	21.00	1.00	1.00
##000000	8.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9AAFE1

Deuteranopia (green-blind)

#87A1DE

Tritanopia (blue-blind)

#00BDC0

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #55b1df;
/* rgb */ color: rgb(85, 177, 223);
/* oklch */ color: oklch(72.3% 0.110 232.9);

Tailwind

colors: {
  custom: {
    50: '#91c8e9',
    500: '#55b1df',
    950: '#000000',
  },
}

SCSS

$custom: #55b1df;
$custom-light: #91c8e9;
$custom-dark: #000000;

JSON

{
  "hex": "#55b1df",
  "rgb": {
    "r": 85,
    "g": 177,
    "b": 223
  },
  "hsl": {
    "h": 200,
    "s": 68.317,
    "l": 60.392
  },
  "oklch": {
    "l": 0.72285,
    "c": 0.10986,
    "h": 232.9
  },
  "luminance": 0.38703
}

Semantic roles & 50–950 ramp

primary

#55B1DF

secondary

#E2BFAE

accent

#5415D0

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #55B1DF

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

Preview Lab → · Contrast checker → · Palette generator →