#2399D4#2399D4

#2399D4 is a light, vivid cyan. Relative luminance 0.279; OKLCH L 64.8% C 0.131 H 236.9°. Best body text is #000000 at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#2399D4
RGB	rgb(35, 153, 212)
HSL	hsl(200, 72%, 48%)
HSV	hsv(200, 83%, 83%)
CMYK	cmyk(83.5%, 27.8%, 0%, 16.9%)
CIE-LAB	lab(59.79, -10.81, -38.93)
CIE-LCH	lch(59.79, 40.40, 254.48°)
OKLab	oklab(64.81% -0.0717 -0.1102)
OKLCH	oklch(64.81% 0.131 236.9)
XYZ	xyz(23.9633, 27.8902, 66.3949)
Luminance	0.2789 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2399D4 #D45E23

analogous

#23D4B6 #2399D4 #2340D4

triadic

#2399D4 #D42399 #99D423

tetradic

#2399D4 #B623D4 #D45E23 #40D423

square

#2399D4 #B623D4 #D45E23 #40D423

split-complementary

#2399D4 #D42340 #D4B623

monochromatic

#124D6B #1A739F #2399D4 #52B2E2 #86C9EB

Accessibility & contrast

On white

3.19

#2399D4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.58

#2399D4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2399D4

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2399D4	#FFFFFF	#000000	##000000
##2399D4	1.00	3.19	6.58	6.58
#FFFFFF	3.19	1.00	21.00	21.00
#000000	6.58	21.00	1.00	1.00
##000000	6.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C99D7

Deuteranopia (green-blind)

#6589D3

Tritanopia (blue-blind)

#00A8AD

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #2399d4;
/* rgb */ color: rgb(35, 153, 212);
/* oklch */ color: oklch(64.8% 0.131 236.9);

Tailwind

colors: {
  custom: {
    50: '#7db6e1',
    500: '#2399d4',
    950: '#000000',
  },
}

SCSS

$custom: #2399d4;
$custom-light: #7db6e1;
$custom-dark: #000000;

JSON

{
  "hex": "#2399d4",
  "rgb": {
    "r": 35,
    "g": 153,
    "b": 212
  },
  "hsl": {
    "h": 200,
    "s": 71.66,
    "l": 48.431
  },
  "oklch": {
    "l": 0.64814,
    "c": 0.13147,
    "h": 236.9
  },
  "luminance": 0.27893
}

Semantic roles & 50–950 ramp

primary

#2399D4

secondary

#D49B7E

accent

#7639EE

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #2399D4

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

Preview Lab → · Contrast checker → · Palette generator →