#399CCC#399CCC

#399CCC is a light, moderate cyan. Relative luminance 0.290; OKLCH L 65.6% C 0.115 H 233.7°. Best body text is #000000 at 6.80:1 contrast (WCAG AA passes).

Color values

HEX	#399CCC
RGB	rgb(57, 156, 204)
HSL	hsl(200, 59%, 51%)
HSV	hsv(200, 72%, 80%)
CMYK	cmyk(72.1%, 23.5%, 0%, 20%)
CIE-LAB	lab(60.78, -12.89, -32.87)
CIE-LCH	lch(60.78, 35.30, 248.59°)
OKLab	oklab(65.62% -0.068 -0.0924)
OKLCH	oklch(65.62% 0.115 233.7)
XYZ	xyz(24.4706, 29.0036, 61.4236)
Luminance	0.2901 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399CCC #CC6939

analogous

#39CCB2 #399CCC #3952CC

triadic

#399CCC #CC399C #9CCC39

tetradic

#399CCC #B239CC #CC6939 #52CC39

square

#399CCC #B239CC #CC6939 #52CC39

split-complementary

#399CCC #CC3952 #CCB239

monochromatic

#1C536E #29789F #399CCC #6AB4D9 #9ACDE5

Accessibility & contrast

On white

3.09

#399CCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.80

#399CCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399CCC

6.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399CCC	#FFFFFF	#000000	##000000
##399CCC	1.00	3.09	6.80	6.80
#FFFFFF	3.09	1.00	21.00	21.00
#000000	6.80	21.00	1.00	1.00
##000000	6.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#849BCE

Deuteranopia (green-blind)

#708CCB

Tritanopia (blue-blind)

#00A9AC

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #399ccc;
/* rgb */ color: rgb(57, 156, 204);
/* oklch */ color: oklch(65.6% 0.115 233.7);

Tailwind

colors: {
  custom: {
    50: '#82b9db',
    500: '#399ccc',
    950: '#000000',
  },
}

SCSS

$custom: #399ccc;
$custom-light: #82b9db;
$custom-dark: #000000;

JSON

{
  "hex": "#399ccc",
  "rgb": {
    "r": 57,
    "g": 156,
    "b": 204
  },
  "hsl": {
    "h": 199.592,
    "s": 59.036,
    "l": 51.176
  },
  "oklch": {
    "l": 0.65622,
    "c": 0.11475,
    "h": 233.7
  },
  "luminance": 0.29006
}

Semantic roles & 50–950 ramp

primary

#399CCC

secondary

#D1A590

accent

#7946E2

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #399CCC

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

Preview Lab → · Contrast checker → · Palette generator →