#4599DB#4599DB

#4599DB is a light, vivid cyan. Relative luminance 0.292; OKLCH L 66.0% C 0.128 H 245.3°. Best body text is #000000 at 6.83:1 contrast (WCAG AA passes).

Color values

HEX	#4599DB
RGB	rgb(69, 153, 219)
HSL	hsl(206, 68%, 56%)
HSV	hsv(206, 68%, 86%)
CMYK	cmyk(68.5%, 30.1%, 0%, 14.1%)
CIE-LAB	lab(60.92, -4.40, -40.99)
CIE-LCH	lch(60.92, 41.23, 263.88°)
OKLab	oklab(66.05% -0.0534 -0.1159)
OKLCH	oklch(66.05% 0.128 245.3)
XYZ	xyz(26.6268, 29.1593, 71.2291)
Luminance	0.2916 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4599DB #DB8745

analogous

#45DBD2 #4599DB #454EDB

triadic

#4599DB #DB4599 #99DB45

tetradic

#4599DB #D245DB #DB8745 #4EDB45

square

#4599DB #D245DB #DB8745 #4EDB45

split-complementary

#4599DB #DB454E #DBD245

monochromatic

#1B5A8B #257BBE #4599DB #78B5E5 #ACD1EF

Accessibility & contrast

On white

3.07

#4599DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.83

#4599DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4599DB

6.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4599DB	#FFFFFF	#000000	##000000
##4599DB	1.00	3.07	6.83	6.83
#FFFFFF	3.07	1.00	21.00	21.00
#000000	6.83	21.00	1.00	1.00
##000000	6.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B9BDE

Deuteranopia (green-blind)

#678DDA

Tritanopia (blue-blind)

#00A9B0

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #4599db;
/* rgb */ color: rgb(69, 153, 219);
/* oklch */ color: oklch(66.0% 0.128 245.3);

Tailwind

colors: {
  custom: {
    50: '#89b6e6',
    500: '#4599db',
    950: '#000000',
  },
}

SCSS

$custom: #4599db;
$custom-light: #89b6e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4599db",
  "rgb": {
    "r": 69,
    "g": 153,
    "b": 219
  },
  "hsl": {
    "h": 206.4,
    "s": 67.568,
    "l": 56.471
  },
  "oklch": {
    "l": 0.66048,
    "c": 0.12761,
    "h": 245.3
  },
  "luminance": 0.29162
}

Semantic roles & 50–950 ramp

primary

#4599DB

secondary

#DDBA9F

accent

#8A3DEA

background

#F9FBFE

surface

#F1F6FC

border

#CBD0D5

text

#0D1116

muted

#7E8084

Preview Lab

Preview with #4599DB

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

Preview Lab → · Contrast checker → · Palette generator →