#399CB7#399CB7

#399CB7 is a light, moderate cyan. Relative luminance 0.281; OKLCH L 64.7% C 0.098 H 219.5°. Best body text is #000000 at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#399CB7
RGB	rgb(57, 156, 183)
HSL	hsl(193, 53%, 47%)
HSV	hsv(193, 69%, 72%)
CMYK	cmyk(68.9%, 14.8%, 0%, 28.2%)
CIE-LAB	lab(59.95, -19.80, -22.37)
CIE-LCH	lch(59.95, 29.87, 228.48°)
OKLab	oklab(64.67% -0.0757 -0.0624)
OKLCH	oklch(64.67% 0.098 219.5)
XYZ	xyz(22.1195, 28.0632, 49.0416)
Luminance	0.2807 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399CB7 #B75439

analogous

#39B793 #399CB7 #395DB7

triadic

#399CB7 #B7399C #9CB739

tetradic

#399CB7 #9339B7 #B75439 #5DB739

square

#399CB7 #9339B7 #B75439 #5DB739

split-complementary

#399CB7 #B7395D #B79339

monochromatic

#1C4C5A #2A7488 #399CB7 #60B6CD #8ECBDC

Accessibility & contrast

On white

3.18

#399CB7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.61

#399CB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399CB7

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399CB7	#FFFFFF	#000000	##000000
##399CB7	1.00	3.18	6.61	6.61
#FFFFFF	3.18	1.00	21.00	21.00
#000000	6.61	21.00	1.00	1.00
##000000	6.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B98B8

Deuteranopia (green-blind)

#7A8BB7

Tritanopia (blue-blind)

#00A5A5

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #399cb7;
/* rgb */ color: rgb(57, 156, 183);
/* oklch */ color: oklch(64.7% 0.098 219.5);

Tailwind

colors: {
  custom: {
    50: '#7fb9cc',
    500: '#399cb7',
    950: '#000000',
  },
}

SCSS

$custom: #399cb7;
$custom-light: #7fb9cc;
$custom-dark: #000000;

JSON

{
  "hex": "#399cb7",
  "rgb": {
    "r": 57,
    "g": 156,
    "b": 183
  },
  "hsl": {
    "h": 192.857,
    "s": 52.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.64674,
    "c": 0.09813,
    "h": 219.5
  },
  "luminance": 0.28066
}

Semantic roles & 50–950 ramp

primary

#399CB7

secondary

#C79385

accent

#6B4CDC

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #399CB7

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

Preview Lab → · Contrast checker → · Palette generator →