#399CB2#399CB2

#399CB2 is a light, moderate cyan. Relative luminance 0.279; OKLCH L 64.5% C 0.095 H 215.4°. Best body text is #000000 at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#399CB2
RGB	rgb(57, 156, 178)
HSL	hsl(191, 51%, 46%)
HSV	hsv(191, 68%, 70%)
CMYK	cmyk(68%, 12.4%, 0%, 30.2%)
CIE-LAB	lab(59.76, -21.39, -19.83)
CIE-LCH	lch(59.76, 29.17, 222.82°)
OKLab	oklab(64.46% -0.0777 -0.0552)
OKLCH	oklch(64.46% 0.095 215.4)
XYZ	xyz(21.6083, 27.8587, 46.3493)
Luminance	0.2786 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399CB2 #B24F39

analogous

#39B28B #399CB2 #395FB2

triadic

#399CB2 #B2399C #9CB239

tetradic

#399CB2 #8B39B2 #B24F39 #5FB239

square

#399CB2 #8B39B2 #B24F39 #5FB239

split-complementary

#399CB2 #B2395F #B28B39

monochromatic

#1B4B55 #2A7384 #399CB2 #5DB7CB #8BCCDA

Accessibility & contrast

On white

3.20

#399CB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.57

#399CB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399CB2

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399CB2	#FFFFFF	#000000	##000000
##399CB2	1.00	3.20	6.57	6.57
#FFFFFF	3.20	1.00	21.00	21.00
#000000	6.57	21.00	1.00	1.00
##000000	6.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D97B3

Deuteranopia (green-blind)

#7B8AB2

Tritanopia (blue-blind)

#00A4A3

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #399cb2;
/* rgb */ color: rgb(57, 156, 178);
/* oklch */ color: oklch(64.5% 0.095 215.4);

Tailwind

colors: {
  custom: {
    50: '#7fb9c9',
    500: '#399cb2',
    950: '#000000',
  },
}

SCSS

$custom: #399cb2;
$custom-light: #7fb9c9;
$custom-dark: #000000;

JSON

{
  "hex": "#399cb2",
  "rgb": {
    "r": 57,
    "g": 156,
    "b": 178
  },
  "hsl": {
    "h": 190.909,
    "s": 51.489,
    "l": 46.078
  },
  "oklch": {
    "l": 0.64464,
    "c": 0.09535,
    "h": 215.4
  },
  "luminance": 0.27861
}

Semantic roles & 50–950 ramp

primary

#399CB2

secondary

#C48E82

accent

#674DDB

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #399CB2

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

Preview Lab → · Contrast checker → · Palette generator →