#5599EC#5599EC

#5599EC is a light, vivid cyan. Relative luminance 0.308; OKLCH L 67.6% C 0.142 H 254.5°. Best body text is #000000 at 7.15:1 contrast (WCAG AA passes).

Color values

HEX	#5599EC
RGB	rgb(85, 153, 236)
HSL	hsl(213, 80%, 63%)
HSV	hsv(213, 64%, 93%)
CMYK	cmyk(64%, 35.2%, 0%, 7.5%)
CIE-LAB	lab(62.31, 3.92, -48.18)
CIE-LCH	lch(62.31, 48.34, 274.65°)
OKLab	oklab(67.56% -0.0378 -0.1367)
OKLCH	oklch(67.56% 0.142 254.5)
XYZ	xyz(30.2724, 30.7669, 83.6839)
Luminance	0.3077 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5599EC #ECA855

analogous

#55E5EC #5599EC #5C55EC

triadic

#5599EC #EC5599 #99EC55

tetradic

#5599EC #EC55E5 #ECA855 #55EC5C

square

#5599EC #EC55E5 #ECA855 #55EC5C

split-complementary

#5599EC #EC5C55 #E5EC55

monochromatic

#145BB3 #1E78E6 #5599EC #8CBAF2 #C3DBF8

Accessibility & contrast

On white

2.94

#5599EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.15

#5599EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5599EC

7.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5599EC	#FFFFFF	#000000	##000000
##5599EC	1.00	2.94	7.15	7.15
#FFFFFF	2.94	1.00	21.00	21.00
#000000	7.15	21.00	1.00	1.00
##000000	7.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#759EEF

Deuteranopia (green-blind)

#6090EA

Tritanopia (blue-blind)

#00ACB7

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #5599ec;
/* rgb */ color: rgb(85, 153, 236);
/* oklch */ color: oklch(67.6% 0.142 254.5);

Tailwind

colors: {
  custom: {
    50: '#92b6f2',
    500: '#5599ec',
    950: '#000000',
  },
}

SCSS

$custom: #5599ec;
$custom-light: #92b6f2;
$custom-dark: #000000;

JSON

{
  "hex": "#5599ec",
  "rgb": {
    "r": 85,
    "g": 153,
    "b": 236
  },
  "hsl": {
    "h": 212.98,
    "s": 79.894,
    "l": 62.941
  },
  "oklch": {
    "l": 0.67564,
    "c": 0.1418,
    "h": 254.5
  },
  "luminance": 0.3077
}

Semantic roles & 50–950 ramp

primary

#5599EC

secondary

#EAD1B3

accent

#7D09DC

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1117

muted

#7E8085

Preview Lab

Preview with #5599EC

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

Preview Lab → · Contrast checker → · Palette generator →