#5599DD#5599DD

#5599DD is a light, vivid cyan. Relative luminance 0.299; OKLCH L 66.8% C 0.123 H 250.2°. Best body text is #000000 at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#5599DD
RGB	rgb(85, 153, 221)
HSL	hsl(210, 67%, 60%)
HSV	hsv(210, 62%, 87%)
CMYK	cmyk(61.5%, 30.8%, 0%, 13.3%)
CIE-LAB	lab(61.60, -1.04, -41.01)
CIE-LCH	lch(61.60, 41.02, 268.54°)
OKLab	oklab(66.77% -0.0418 -0.1158)
OKLCH	oklch(66.77% 0.123 250.2)
XYZ	xyz(28.1839, 29.9316, 72.6847)
Luminance	0.2993 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5599DD #DD9955

analogous

#55DDDD #5599DD #5555DD

triadic

#5599DD #DD5599 #99DD55

tetradic

#5599DD #DD55DD #DD9955 #55DD55

square

#5599DD #DD55DD #DD9955 #55DD55

split-complementary

#5599DD #DD5555 #DDDD55

monochromatic

#1F5C99 #297ACC #5599DD #88B8E7 #BBD6F1

Accessibility & contrast

On white

3.01

#5599DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.99

#5599DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5599DD

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5599DD	#FFFFFF	#000000	##000000
##5599DD	1.00	3.01	6.99	6.99
#FFFFFF	3.01	1.00	21.00	21.00
#000000	6.99	21.00	1.00	1.00
##000000	6.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C9CE0

Deuteranopia (green-blind)

#698FDC

Tritanopia (blue-blind)

#00A9B1

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #5599dd;
/* rgb */ color: rgb(85, 153, 221);
/* oklch */ color: oklch(66.8% 0.123 250.2);

Tailwind

colors: {
  custom: {
    50: '#90b6e8',
    500: '#5599dd',
    950: '#000000',
  },
}

SCSS

$custom: #5599dd;
$custom-light: #90b6e8;
$custom-dark: #000000;

JSON

{
  "hex": "#5599dd",
  "rgb": {
    "r": 85,
    "g": 153,
    "b": 221
  },
  "hsl": {
    "h": 210,
    "s": 66.667,
    "l": 60
  },
  "oklch": {
    "l": 0.6677,
    "c": 0.12307,
    "h": 250.2
  },
  "luminance": 0.29934
}

Semantic roles & 50–950 ramp

primary

#5599DD

secondary

#E1C7AD

accent

#943EEA

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #5599DD

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

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