#55B5DC#55B5DC

#55B5DC is a light, moderate cyan. Relative luminance 0.401; OKLCH L 73.1% C 0.106 H 227.6°. Best body text is #000000 at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#55B5DC
RGB	rgb(85, 181, 220)
HSL	hsl(197, 66%, 60%)
HSV	hsv(197, 61%, 86%)
CMYK	cmyk(61.4%, 17.7%, 0%, 13.7%)
CIE-LAB	lab(69.57, -16.77, -28.06)
CIE-LCH	lch(69.57, 32.69, 239.14°)
OKLab	oklab(73.07% -0.0715 -0.0783)
OKLCH	oklch(73.07% 0.106 227.6)
XYZ	xyz(33.1834, 40.1430, 73.6959)
Luminance	0.4015 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55B5DC #DC7C55

analogous

#55DCBF #55B5DC #5572DC

triadic

#55B5DC #DC55B5 #B5DC55

tetradic

#55B5DC #BF55DC #DC7C55 #72DC55

square

#55B5DC #BF55DC #DC7C55 #72DC55

split-complementary

#55B5DC #DC5572 #DCBF55

monochromatic

#1F7597 #2A9CCA #55B5DC #88CBE6 #BBE1F1

Accessibility & contrast

On white

2.33

#55B5DC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.03

#55B5DC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #55B5DC

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55B5DC	#FFFFFF	#000000	##000000
##55B5DC	1.00	2.33	9.03	9.03
#FFFFFF	2.33	1.00	21.00	21.00
#000000	9.03	21.00	1.00	1.00
##000000	9.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A0B2DE

Deuteranopia (green-blind)

#8DA4DC

Tritanopia (blue-blind)

#00C0C2

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #55b5dc;
/* rgb */ color: rgb(85, 181, 220);
/* oklch */ color: oklch(73.1% 0.106 227.6);

Tailwind

colors: {
  custom: {
    50: '#91cbe7',
    500: '#55b5dc',
    950: '#000000',
  },
}

SCSS

$custom: #55b5dc;
$custom-light: #91cbe7;
$custom-dark: #000000;

JSON

{
  "hex": "#55b5dc",
  "rgb": {
    "r": 85,
    "g": 181,
    "b": 220
  },
  "hsl": {
    "h": 197.333,
    "s": 65.854,
    "l": 59.804
  },
  "oklch": {
    "l": 0.73073,
    "c": 0.10608,
    "h": 227.6
  },
  "luminance": 0.40146
}

Semantic roles & 50–950 ramp

primary

#55B5DC

secondary

#E0BBAC

accent

#703FE9

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #55B5DC

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

Preview Lab → · Contrast checker → · Palette generator →