#399CB4#399CB4

#399CB4 is a light, moderate cyan. Relative luminance 0.279; OKLCH L 64.5% C 0.096 H 217.0°. Best body text is #000000 at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#399CB4
RGB	rgb(57, 156, 180)
HSL	hsl(192, 52%, 46%)
HSV	hsv(192, 68%, 71%)
CMYK	cmyk(68.3%, 13.3%, 0%, 29.4%)
CIE-LAB	lab(59.83, -20.76, -20.84)
CIE-LCH	lch(59.83, 29.42, 225.12°)
OKLab	oklab(64.55% -0.0769 -0.0581)
OKLCH	oklch(64.55% 0.096 217)
XYZ	xyz(21.8106, 27.9396, 47.4146)
Luminance	0.2794 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399CB4 #B45139

analogous

#39B48F #399CB4 #395FB4

triadic

#399CB4 #B4399C #9CB439

tetradic

#399CB4 #8F39B4 #B45139 #5FB439

square

#399CB4 #8F39B4 #B45139 #5FB439

split-complementary

#399CB4 #B4395F #B48F39

monochromatic

#1C4B57 #2A7486 #399CB4 #5EB7CC #8DCCDB

Accessibility & contrast

On white

3.19

#399CB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.59

#399CB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399CB4

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399CB4	#FFFFFF	#000000	##000000
##399CB4	1.00	3.19	6.59	6.59
#FFFFFF	3.19	1.00	21.00	21.00
#000000	6.59	21.00	1.00	1.00
##000000	6.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C97B5

Deuteranopia (green-blind)

#7B8BB4

Tritanopia (blue-blind)

#00A4A4

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #399cb4;
/* rgb */ color: rgb(57, 156, 180);
/* oklch */ color: oklch(64.5% 0.096 217.0);

Tailwind

colors: {
  custom: {
    50: '#7fb9ca',
    500: '#399cb4',
    950: '#000000',
  },
}

SCSS

$custom: #399cb4;
$custom-light: #7fb9ca;
$custom-dark: #000000;

JSON

{
  "hex": "#399cb4",
  "rgb": {
    "r": 57,
    "g": 156,
    "b": 180
  },
  "hsl": {
    "h": 191.707,
    "s": 51.899,
    "l": 46.471
  },
  "oklch": {
    "l": 0.64547,
    "c": 0.0964,
    "h": 217
  },
  "luminance": 0.27942
}

Semantic roles & 50–950 ramp

primary

#399CB4

secondary

#C59083

accent

#684CDB

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #399CB4

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

Preview Lab → · Contrast checker → · Palette generator →