#55C9EF#55C9EF

#55C9EF is a light, moderate cyan. Relative luminance 0.499; OKLCH L 78.5% C 0.116 H 223.0°. Best body text is #000000 at 10.99:1 contrast (WCAG AA passes).

Color values

HEX	#55C9EF
RGB	rgb(85, 201, 239)
HSL	hsl(195, 83%, 64%)
HSV	hsv(195, 64%, 94%)
CMYK	cmyk(64.4%, 15.9%, 0%, 6.3%)
CIE-LAB	lab(76.03, -21.33, -28.45)
CIE-LCH	lch(76.03, 35.56, 233.13°)
OKLab	oklab(78.47% -0.0851 -0.0793)
OKLCH	oklch(78.47% 0.116 223)
XYZ	xyz(40.2067, 49.9323, 89.1636)
Luminance	0.4994 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55C9EF #EF7B55

analogous

#55EFC8 #55C9EF #557CEF

triadic

#55C9EF #EF55C9 #C9EF55

tetradic

#55C9EF #C855EF #EF7B55 #7CEF55

square

#55C9EF #C855EF #EF7B55 #7CEF55

split-complementary

#55C9EF #EF557C #EFC855

monochromatic

#118FB8 #1DB7EA #55C9EF #8DDBF4 #C5EDFA

Accessibility & contrast

On white

1.91

#55C9EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.99

#55C9EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #55C9EF

10.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55C9EF	#FFFFFF	#000000	##000000
##55C9EF	1.00	1.91	10.99	10.99
#FFFFFF	1.91	1.00	21.00	21.00
#000000	10.99	21.00	1.00	1.00
##000000	10.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B3C5F1

Deuteranopia (green-blind)

#9DB4EF

Tritanopia (blue-blind)

#00D5D5

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #55c9ef;
/* rgb */ color: rgb(85, 201, 239);
/* oklch */ color: oklch(78.5% 0.116 223.0);

Tailwind

colors: {
  custom: {
    50: '#94d9f4',
    500: '#55c9ef',
    950: '#000000',
  },
}

SCSS

$custom: #55c9ef;
$custom-light: #94d9f4;
$custom-dark: #000000;

JSON

{
  "hex": "#55c9ef",
  "rgb": {
    "r": 85,
    "g": 201,
    "b": 239
  },
  "hsl": {
    "h": 194.805,
    "s": 82.796,
    "l": 63.529
  },
  "oklch": {
    "l": 0.78466,
    "c": 0.11638,
    "h": 223
  },
  "luminance": 0.49937
}

Semantic roles & 50–950 ramp

primary

#55C9EF

secondary

#EBC2B5

accent

#3C06DF

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0F1417

muted

#7E8385

Preview Lab

Preview with #55C9EF

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

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