#55B4EE#55B4EE

#55B4EE is a light, vivid cyan. Relative luminance 0.407; OKLCH L 73.6% C 0.123 H 238.4°. Best body text is #000000 at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#55B4EE
RGB	rgb(85, 180, 238)
HSL	hsl(203, 82%, 63%)
HSV	hsv(203, 64%, 93%)
CMYK	cmyk(64.3%, 24.4%, 0%, 6.7%)
CIE-LAB	lab(70.00, -10.61, -37.22)
CIE-LCH	lch(70.00, 38.71, 254.09°)
OKLab	oklab(73.65% -0.0643 -0.1046)
OKLCH	oklch(73.65% 0.123 238.4)
XYZ	xyz(35.4943, 40.7432, 86.8660)
Luminance	0.4075 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55B4EE #EE8F55

analogous

#55EEDB #55B4EE #5567EE

triadic

#55B4EE #EE55B4 #B4EE55

tetradic

#55B4EE #DB55EE #EE8F55 #67EE55

square

#55B4EE #DB55EE #EE8F55 #67EE55

split-complementary

#55B4EE #EE5567 #EEDB55

monochromatic

#1278B6 #1D9BE8 #55B4EE #8DCDF4 #C4E5F9

Accessibility & contrast

On white

2.30

#55B4EE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.15

#55B4EE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #55B4EE

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55B4EE	#FFFFFF	#000000	##000000
##55B4EE	1.00	2.30	9.15	9.15
#FFFFFF	2.30	1.00	21.00	21.00
#000000	9.15	21.00	1.00	1.00
##000000	9.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#99B4F1

Deuteranopia (green-blind)

#84A4ED

Tritanopia (blue-blind)

#00C3C8

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #55b4ee;
/* rgb */ color: rgb(85, 180, 238);
/* oklch */ color: oklch(73.6% 0.123 238.4);

Tailwind

colors: {
  custom: {
    50: '#93caf3',
    500: '#55b4ee',
    950: '#000000',
  },
}

SCSS

$custom: #55b4ee;
$custom-light: #93caf3;
$custom-dark: #000000;

JSON

{
  "hex": "#55b4ee",
  "rgb": {
    "r": 85,
    "g": 180,
    "b": 238
  },
  "hsl": {
    "h": 202.745,
    "s": 81.818,
    "l": 63.333
  },
  "oklch": {
    "l": 0.73646,
    "c": 0.12279,
    "h": 238.4
  },
  "luminance": 0.40747
}

Semantic roles & 50–950 ramp

primary

#55B4EE

secondary

#EBC9B4

accent

#5907DE

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1317

muted

#7E8285

Preview Lab

Preview with #55B4EE

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

Preview Lab → · Contrast checker → · Palette generator →