#399CB9#399CB9

#399CB9 is a light, moderate cyan. Relative luminance 0.281; OKLCH L 64.8% C 0.099 H 221.0°. Best body text is #000000 at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#399CB9
RGB	rgb(57, 156, 185)
HSL	hsl(194, 53%, 47%)
HSV	hsv(194, 69%, 73%)
CMYK	cmyk(69.2%, 15.7%, 0%, 27.5%)
CIE-LAB	lab(60.02, -19.16, -23.38)
CIE-LCH	lch(60.02, 30.23, 230.66°)
OKLab	oklab(64.76% -0.075 -0.0653)
OKLCH	oklch(64.76% 0.099 221)
XYZ	xyz(22.3292, 28.1471, 50.1457)
Luminance	0.2815 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399CB9 #B95639

analogous

#39B996 #399CB9 #395CB9

triadic

#399CB9 #B9399C #9CB939

tetradic

#399CB9 #9639B9 #B95639 #5CB939

square

#399CB9 #9639B9 #B95639 #5CB939

split-complementary

#399CB9 #B9395C #B99639

monochromatic

#1C4D5B #2B758A #399CB9 #61B6CE #90CBDD

Accessibility & contrast

On white

3.17

#399CB9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.63

#399CB9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399CB9

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399CB9	#FFFFFF	#000000	##000000
##399CB9	1.00	3.17	6.63	6.63
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.63	21.00	1.00	1.00
##000000	6.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B98BB

Deuteranopia (green-blind)

#798BB9

Tritanopia (blue-blind)

#00A5A5

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #399cb9;
/* rgb */ color: rgb(57, 156, 185);
/* oklch */ color: oklch(64.8% 0.099 221.0);

Tailwind

colors: {
  custom: {
    50: '#7fb9ce',
    500: '#399cb9',
    950: '#000000',
  },
}

SCSS

$custom: #399cb9;
$custom-light: #7fb9ce;
$custom-dark: #000000;

JSON

{
  "hex": "#399cb9",
  "rgb": {
    "r": 57,
    "g": 156,
    "b": 185
  },
  "hsl": {
    "h": 193.594,
    "s": 52.893,
    "l": 47.451
  },
  "oklch": {
    "l": 0.6476,
    "c": 0.0994,
    "h": 221
  },
  "luminance": 0.2815
}

Semantic roles & 50–950 ramp

primary

#399CB9

secondary

#C89586

accent

#6C4BDC

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #399CB9

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

Preview Lab → · Contrast checker → · Palette generator →