#5599DB#5599DB

#5599DB is a light, vivid cyan. Relative luminance 0.298; OKLCH L 66.7% C 0.121 H 249.4°. Best body text is #000000 at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#5599DB
RGB	rgb(85, 153, 219)
HSL	hsl(210, 65%, 60%)
HSV	hsv(210, 61%, 86%)
CMYK	cmyk(61.2%, 30.1%, 0%, 14.1%)
CIE-LAB	lab(61.50, -1.69, -40.04)
CIE-LCH	lch(61.50, 40.08, 267.58°)
OKLab	oklab(66.67% -0.0424 -0.1129)
OKLCH	oklch(66.67% 0.121 249.4)
XYZ	xyz(27.9191, 29.8256, 71.2897)
Luminance	0.2983 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5599DB #DB9755

analogous

#55DBDA #5599DB #5556DB

triadic

#5599DB #DB5599 #99DB55

tetradic

#5599DB #DA55DB #DB9755 #56DB55

square

#5599DB #DA55DB #DB9755 #56DB55

split-complementary

#5599DB #DB5556 #DBDA55

monochromatic

#205C96 #2A7BC8 #5599DB #88B7E6 #BAD6F0

Accessibility & contrast

On white

3.01

#5599DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.97

#5599DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5599DB

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5599DB	#FFFFFF	#000000	##000000
##5599DB	1.00	3.01	6.97	6.97
#FFFFFF	3.01	1.00	21.00	21.00
#000000	6.97	21.00	1.00	1.00
##000000	6.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D9CDE

Deuteranopia (green-blind)

#6B8FDA

Tritanopia (blue-blind)

#00A8B0

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #5599db;
/* rgb */ color: rgb(85, 153, 219);
/* oklch */ color: oklch(66.7% 0.121 249.4);

Tailwind

colors: {
  custom: {
    50: '#90b6e6',
    500: '#5599db',
    950: '#000000',
  },
}

SCSS

$custom: #5599db;
$custom-light: #90b6e6;
$custom-dark: #000000;

JSON

{
  "hex": "#5599db",
  "rgb": {
    "r": 85,
    "g": 153,
    "b": 219
  },
  "hsl": {
    "h": 209.552,
    "s": 65.049,
    "l": 59.608
  },
  "oklch": {
    "l": 0.66667,
    "c": 0.12063,
    "h": 249.4
  },
  "luminance": 0.29828
}

Semantic roles & 50–950 ramp

primary

#5599DB

secondary

#E0C6AC

accent

#9340E8

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #5599DB

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

Preview Lab → · Contrast checker → · Palette generator →