#4399DC#4399DC

#4399DC is a light, vivid cyan. Relative luminance 0.291; OKLCH L 66.0% C 0.130 H 245.2°. Best body text is #000000 at 6.83:1 contrast (WCAG AA passes).

Color values

HEX	#4399DC
RGB	rgb(67, 153, 220)
HSL	hsl(206, 69%, 56%)
HSV	hsv(206, 70%, 86%)
CMYK	cmyk(69.5%, 30.5%, 0%, 13.7%)
CIE-LAB	lab(60.91, -4.36, -41.58)
CIE-LCH	lch(60.91, 41.81, 264.02°)
OKLab	oklab(66.03% -0.0543 -0.1176)
OKLCH	oklch(66.03% 0.13 245.2)
XYZ	xyz(26.6193, 29.1402, 71.9180)
Luminance	0.2914 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4399DC #DC8643

analogous

#43DCD3 #4399DC #434DDC

triadic

#4399DC #DC4399 #99DC43

tetradic

#4399DC #D343DC #DC8643 #4DDC43

square

#4399DC #D343DC #DC8643 #4DDC43

split-complementary

#4399DC #DC434D #DCD343

monochromatic

#1A598B #237BBE #4399DC #77B5E6 #AAD1EF

Accessibility & contrast

On white

3.08

#4399DC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.83

#4399DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4399DC

6.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4399DC	#FFFFFF	#000000	##000000
##4399DC	1.00	3.08	6.83	6.83
#FFFFFF	3.08	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)

#7B9BDF

Deuteranopia (green-blind)

#668CDB

Tritanopia (blue-blind)

#00A9B1

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #4399dc;
/* rgb */ color: rgb(67, 153, 220);
/* oklch */ color: oklch(66.0% 0.130 245.2);

Tailwind

colors: {
  custom: {
    50: '#88b6e7',
    500: '#4399dc',
    950: '#000000',
  },
}

SCSS

$custom: #4399dc;
$custom-light: #88b6e7;
$custom-dark: #000000;

JSON

{
  "hex": "#4399dc",
  "rgb": {
    "r": 67,
    "g": 153,
    "b": 220
  },
  "hsl": {
    "h": 206.275,
    "s": 68.61,
    "l": 56.275
  },
  "oklch": {
    "l": 0.66032,
    "c": 0.12958,
    "h": 245.2
  },
  "luminance": 0.29143
}

Semantic roles & 50–950 ramp

primary

#4399DC

secondary

#DDB99E

accent

#893CEB

background

#F9FBFE

surface

#F1F6FC

border

#CBD0D5

text

#0D1116

muted

#7E8084

Preview Lab

Preview with #4399DC

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

Preview Lab → · Contrast checker → · Palette generator →