#5399DB#5399DB

#5399DB is a light, vivid cyan. Relative luminance 0.297; OKLCH L 66.6% C 0.122 H 248.9°. Best body text is #000000 at 6.95:1 contrast (WCAG AA passes).

Color values

HEX	#5399DB
RGB	rgb(83, 153, 219)
HSL	hsl(209, 65%, 59%)
HSV	hsv(209, 62%, 86%)
CMYK	cmyk(62.1%, 30.1%, 0%, 14.1%)
CIE-LAB	lab(61.42, -2.06, -40.17)
CIE-LCH	lch(61.42, 40.23, 267.06°)
OKLab	oklab(66.58% -0.0438 -0.1134)
OKLCH	oklch(66.58% 0.122 248.9)
XYZ	xyz(27.7400, 29.7333, 71.2813)
Luminance	0.2974 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5399DB #DB9553

analogous

#53DBD9 #5399DB #5355DB

triadic

#5399DB #DB5399 #99DB53

tetradic

#5399DB #D953DB #DB9553 #55DB53

square

#5399DB #D953DB #DB9553 #55DB53

split-complementary

#5399DB #DB5355 #DBD953

monochromatic

#1F5C95 #2A7BC7 #5399DB #86B7E6 #B8D5F0

Accessibility & contrast

On white

3.02

#5399DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.95

#5399DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5399DB

6.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5399DB	#FFFFFF	#000000	##000000
##5399DB	1.00	3.02	6.95	6.95
#FFFFFF	3.02	1.00	21.00	21.00
#000000	6.95	21.00	1.00	1.00
##000000	6.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D9CDE

Deuteranopia (green-blind)

#6A8EDA

Tritanopia (blue-blind)

#00A9B0

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #5399db;
/* rgb */ color: rgb(83, 153, 219);
/* oklch */ color: oklch(66.6% 0.122 248.9);

Tailwind

colors: {
  custom: {
    50: '#8fb6e6',
    500: '#5399db',
    950: '#000000',
  },
}

SCSS

$custom: #5399db;
$custom-light: #8fb6e6;
$custom-dark: #000000;

JSON

{
  "hex": "#5399db",
  "rgb": {
    "r": 83,
    "g": 153,
    "b": 219
  },
  "hsl": {
    "h": 209.118,
    "s": 65.385,
    "l": 59.216
  },
  "oklch": {
    "l": 0.66582,
    "c": 0.12155,
    "h": 248.9
  },
  "luminance": 0.29736
}

Semantic roles & 50–950 ramp

primary

#5399DB

secondary

#DFC4AA

accent

#913FE8

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0D1116

muted

#7E8084

Preview Lab

Preview with #5399DB

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

Preview Lab → · Contrast checker → · Palette generator →