#55A8E9#55A8E9

#55A8E9 is a light, vivid cyan. Relative luminance 0.358; OKLCH L 70.7% C 0.125 H 244.6°. Best body text is #000000 at 8.16:1 contrast (WCAG AA passes).

Color values

HEX#55A8E9
RGBrgb(85, 168, 233)
HSLhsl(206, 77%, 62%)
HSVhsv(206, 64%, 91%)
CMYKcmyk(63.5%, 27.9%, 0%, 8.6%)
CIE-LABlab(66.38, -5.62, -40.13)
CIE-LCHlch(66.38, 40.53, 262.03°)
OKLaboklab(70.71% -0.0537 -0.1131)
OKLCHoklch(70.71% 0.125 244.6)
XYZxyz(32.4514, 35.8165, 82.2781)
Luminance0.3582 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#55A8E9 #E99655
analogous
#55E9E0 #55A8E9 #555EE9
triadic
#55A8E9 #E955A8 #A8E955
tetradic
#55A8E9 #E055E9 #E99655 #5EE955
square
#55A8E9 #E055E9 #E99655 #5EE955
split-complementary
#55A8E9 #E9555E #E9E055
monochromatic
#166BAD #1F8CE2 #55A8E9 #8BC4F0 #C1DFF7

Accessibility & contrast

On white

2.57
#55A8E9 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.16
#55A8E9 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #55A8E9
8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##55A8E9#FFFFFF#000000##000000
##55A8E91.002.578.168.16
#FFFFFF2.571.0021.0021.00
#0000008.1621.001.001.00
##0000008.1621.001.001.00

Color blindness preview

Protanopia (red-blind)
#8BA9EC
Deuteranopia (green-blind)
#779BE8
Tritanopia (blue-blind)
#00B8BF
Achromatopsia (no color)
#A1A1A1

Design tokens & code

CSS
--color: #55a8e9;
/* rgb */ color: rgb(85, 168, 233);
/* oklch */ color: oklch(70.7% 0.125 244.6);
Tailwind
colors: {
  custom: {
    50: '#92c1f0',
    500: '#55a8e9',
    950: '#000000',
  },
}
SCSS
$custom: #55a8e9;
$custom-light: #92c1f0;
$custom-dark: #000000;
JSON
{
  "hex": "#55a8e9",
  "rgb": {
    "r": 85,
    "g": 168,
    "b": 233
  },
  "hsl": {
    "h": 206.351,
    "s": 77.083,
    "l": 62.353
  },
  "oklch": {
    "l": 0.70714,
    "c": 0.12521,
    "h": 244.6
  },
  "luminance": 0.3582
}

Semantic roles & 50–950 ramp

primary
#55A8E9
secondary
#E8CAB2
accent
#660CD9
background
#F9FBFE
surface
#F2F7FD
border
#CCD0D5
text
#0E1216
muted
#7E8184

Preview Lab

Preview with #55A8E9

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

Preview Lab → · Contrast checker → · Palette generator →

#55A8E9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva