#55B3DA#55B3DA

#55B3DA is a light, moderate cyan. Relative luminance 0.392; OKLCH L 72.5% C 0.105 H 228.1°. Best body text is #000000 at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#55B3DA
RGB	rgb(85, 179, 218)
HSL	hsl(198, 64%, 59%)
HSV	hsv(198, 61%, 85%)
CMYK	cmyk(61%, 17.9%, 0%, 14.5%)
CIE-LAB	lab(68.92, -16.33, -27.97)
CIE-LCH	lch(68.92, 32.39, 239.73°)
OKLab	oklab(72.53% -0.0702 -0.0781)
OKLCH	oklch(72.53% 0.105 228.1)
XYZ	xyz(32.5164, 39.2302, 72.1746)
Luminance	0.3923 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55B3DA #DA7C55

analogous

#55DABF #55B3DA #5571DA

triadic

#55B3DA #DA55B3 #B3DA55

tetradic

#55B3DA #BF55DA #DA7C55 #71DA55

square

#55B3DA #BF55DA #DA7C55 #71DA55

split-complementary

#55B3DA #DA5571 #DABF55

monochromatic

#207294 #2B99C7 #55B3DA #87C9E5 #BAE0F0

Accessibility & contrast

On white

2.37

#55B3DA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.85

#55B3DA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #55B3DA

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55B3DA	#FFFFFF	#000000	##000000
##55B3DA	1.00	2.37	8.85	8.85
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.85	21.00	1.00	1.00
##000000	8.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FB0DC

Deuteranopia (green-blind)

#8CA2DA

Tritanopia (blue-blind)

#00BEC0

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #55b3da;
/* rgb */ color: rgb(85, 179, 218);
/* oklch */ color: oklch(72.5% 0.105 228.1);

Tailwind

colors: {
  custom: {
    50: '#91c9e5',
    500: '#55b3da',
    950: '#000000',
  },
}

SCSS

$custom: #55b3da;
$custom-light: #91c9e5;
$custom-dark: #000000;

JSON

{
  "hex": "#55b3da",
  "rgb": {
    "r": 85,
    "g": 179,
    "b": 218
  },
  "hsl": {
    "h": 197.594,
    "s": 64.251,
    "l": 59.412
  },
  "oklch": {
    "l": 0.72527,
    "c": 0.10496,
    "h": 228.1
  },
  "luminance": 0.39233
}

Semantic roles & 50–950 ramp

primary

#55B3DA

secondary

#DFBBAB

accent

#7141E7

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1315

muted

#7E8284

Preview Lab

Preview with #55B3DA

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

Preview Lab → · Contrast checker → · Palette generator →