#55B3DB#55B3DB

#55B3DB is a light, moderate cyan. Relative luminance 0.393; OKLCH L 72.6% C 0.106 H 228.7°. Best body text is #000000 at 8.86:1 contrast (WCAG AA passes).

Color values

HEX	#55B3DB
RGB	rgb(85, 179, 219)
HSL	hsl(198, 65%, 60%)
HSV	hsv(198, 61%, 86%)
CMYK	cmyk(61.2%, 18.3%, 0%, 14.1%)
CIE-LAB	lab(68.96, -16.02, -28.46)
CIE-LCH	lch(68.96, 32.66, 240.63°)
OKLab	oklab(72.57% -0.0698 -0.0795)
OKLCH	oklch(72.57% 0.106 228.7)
XYZ	xyz(32.6476, 39.2827, 72.8659)
Luminance	0.3929 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55B3DB #DB7D55

analogous

#55DBC0 #55B3DB #5570DB

triadic

#55B3DB #DB55B3 #B3DB55

tetradic

#55B3DB #C055DB #DB7D55 #70DB55

square

#55B3DB #C055DB #DB7D55 #70DB55

split-complementary

#55B3DB #DB5570 #DBC055

monochromatic

#207396 #2A99C8 #55B3DB #88CAE6 #BAE0F0

Accessibility & contrast

On white

2.37

#55B3DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.86

#55B3DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #55B3DB

8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55B3DB	#FFFFFF	#000000	##000000
##55B3DB	1.00	2.37	8.86	8.86
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.86	21.00	1.00	1.00
##000000	8.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EB0DD

Deuteranopia (green-blind)

#8BA2DA

Tritanopia (blue-blind)

#00BEC0

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #55b3db;
/* rgb */ color: rgb(85, 179, 219);
/* oklch */ color: oklch(72.6% 0.106 228.7);

Tailwind

colors: {
  custom: {
    50: '#91c9e6',
    500: '#55b3db',
    950: '#000000',
  },
}

SCSS

$custom: #55b3db;
$custom-light: #91c9e6;
$custom-dark: #000000;

JSON

{
  "hex": "#55b3db",
  "rgb": {
    "r": 85,
    "g": 179,
    "b": 219
  },
  "hsl": {
    "h": 197.91,
    "s": 65.049,
    "l": 59.608
  },
  "oklch": {
    "l": 0.7257,
    "c": 0.10576,
    "h": 228.7
  },
  "luminance": 0.39286
}

Semantic roles & 50–950 ramp

primary

#55B3DB

secondary

#E0BBAC

accent

#7240E8

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #55B3DB

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

Preview Lab → · Contrast checker → · Palette generator →