#399FB7#399FB7

#399FB7 is a light, moderate cyan. Relative luminance 0.291; OKLCH L 65.4% C 0.098 H 216.5°. Best body text is #000000 at 6.82:1 contrast (WCAG AA passes).

Color values

HEX	#399FB7
RGB	rgb(57, 159, 183)
HSL	hsl(191, 53%, 47%)
HSV	hsv(191, 69%, 72%)
CMYK	cmyk(68.9%, 13.1%, 0%, 28.2%)
CIE-LAB	lab(60.85, -21.37, -20.98)
CIE-LCH	lch(60.85, 29.95, 224.46°)
OKLab	oklab(65.4% -0.0788 -0.0584)
OKLCH	oklch(65.4% 0.098 216.5)
XYZ	xyz(22.6292, 29.0825, 49.2114)
Luminance	0.2908 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399FB7 #B75139

analogous

#39B790 #399FB7 #3960B7

triadic

#399FB7 #B7399F #9FB739

tetradic

#399FB7 #9039B7 #B75139 #60B739

square

#399FB7 #9039B7 #B75139 #60B739

split-complementary

#399FB7 #B73960 #B79039

monochromatic

#1C4E5A #2A7688 #399FB7 #60B9CD #8ECDDC

Accessibility & contrast

On white

3.08

#399FB7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.82

#399FB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399FB7

6.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399FB7	#FFFFFF	#000000	##000000
##399FB7	1.00	3.08	6.82	6.82
#FFFFFF	3.08	1.00	21.00	21.00
#000000	6.82	21.00	1.00	1.00
##000000	6.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F9AB8

Deuteranopia (green-blind)

#7D8DB7

Tritanopia (blue-blind)

#00A8A6

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #399fb7;
/* rgb */ color: rgb(57, 159, 183);
/* oklch */ color: oklch(65.4% 0.098 216.5);

Tailwind

colors: {
  custom: {
    50: '#7fbbcc',
    500: '#399fb7',
    950: '#000000',
  },
}

SCSS

$custom: #399fb7;
$custom-light: #7fbbcc;
$custom-dark: #000000;

JSON

{
  "hex": "#399fb7",
  "rgb": {
    "r": 57,
    "g": 159,
    "b": 183
  },
  "hsl": {
    "h": 191.429,
    "s": 52.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.65403,
    "c": 0.09814,
    "h": 216.5
  },
  "luminance": 0.29085
}

Semantic roles & 50–950 ramp

primary

#399FB7

secondary

#C79285

accent

#674CDC

background

#F8FBFC

surface

#F0F6F8

border

#CBD0D1

text

#0B1213

muted

#7C8182

Preview Lab

Preview with #399FB7

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

Preview Lab → · Contrast checker → · Palette generator →