#399FC8#399FC8

#399FC8 is a light, moderate cyan. Relative luminance 0.298; OKLCH L 66.1% C 0.110 H 228.8°. Best body text is #000000 at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#399FC8
RGB	rgb(57, 159, 200)
HSL	hsl(197, 57%, 50%)
HSV	hsv(197, 72%, 78%)
CMYK	cmyk(71.5%, 20.5%, 0%, 21.6%)
CIE-LAB	lab(61.51, -15.86, -29.51)
CIE-LCH	lch(61.51, 33.50, 241.74°)
OKLab	oklab(66.15% -0.0723 -0.0828)
OKLCH	oklch(66.15% 0.11 228.8)
XYZ	xyz(24.5066, 29.8335, 59.0992)
Luminance	0.2984 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399FC8 #C86239

analogous

#39C8AA #399FC8 #3957C8

triadic

#399FC8 #C8399F #9FC839

tetradic

#399FC8 #AA39C8 #C86239 #57C839

square

#399FC8 #AA39C8 #C86239 #57C839

split-complementary

#399FC8 #C83957 #C8AA39

monochromatic

#1D5469 #2B7A99 #399FC8 #69B6D5 #99CDE3

Accessibility & contrast

On white

3.01

#399FC8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.97

#399FC8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399FC8

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399FC8	#FFFFFF	#000000	##000000
##399FC8	1.00	3.01	6.97	6.97
#FFFFFF	3.01	1.00	21.00	21.00
#000000	6.97	21.00	1.00	1.00
##000000	6.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A9CCA

Deuteranopia (green-blind)

#768EC7

Tritanopia (blue-blind)

#00ABAD

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #399fc8;
/* rgb */ color: rgb(57, 159, 200);
/* oklch */ color: oklch(66.1% 0.110 228.8);

Tailwind

colors: {
  custom: {
    50: '#82bbd8',
    500: '#399fc8',
    950: '#000000',
  },
}

SCSS

$custom: #399fc8;
$custom-light: #82bbd8;
$custom-dark: #000000;

JSON

{
  "hex": "#399fc8",
  "rgb": {
    "r": 57,
    "g": 159,
    "b": 200
  },
  "hsl": {
    "h": 197.203,
    "s": 56.522,
    "l": 50.392
  },
  "oklch": {
    "l": 0.66146,
    "c": 0.10992,
    "h": 228.8
  },
  "luminance": 0.29836
}

Semantic roles & 50–950 ramp

primary

#399FC8

secondary

#CEA18F

accent

#7448E0

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #399FC8

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

Preview Lab → · Contrast checker → · Palette generator →