#399CB1#399CB1

#399CB1 is a light, moderate cyan. Relative luminance 0.278; OKLCH L 64.4% C 0.095 H 214.5°. Best body text is #000000 at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#399CB1
RGB	rgb(57, 156, 177)
HSL	hsl(191, 51%, 46%)
HSV	hsv(191, 68%, 69%)
CMYK	cmyk(67.8%, 11.9%, 0%, 30.6%)
CIE-LAB	lab(59.72, -21.71, -19.32)
CIE-LCH	lch(59.72, 29.06, 221.67°)
OKLab	oklab(64.42% -0.0782 -0.0537)
OKLCH	oklch(64.42% 0.095 214.5)
XYZ	xyz(21.5083, 27.8187, 45.8225)
Luminance	0.2782 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399CB1 #B14E39

analogous

#39B18A #399CB1 #3960B1

triadic

#399CB1 #B1399C #9CB139

tetradic

#399CB1 #8A39B1 #B14E39 #60B139

square

#399CB1 #8A39B1 #B14E39 #60B139

split-complementary

#399CB1 #B13960 #B18A39

monochromatic

#1B4A54 #2A7383 #399CB1 #5DB7CB #8BCCDA

Accessibility & contrast

On white

3.20

#399CB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.56

#399CB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399CB1

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399CB1	#FFFFFF	#000000	##000000
##399CB1	1.00	3.20	6.56	6.56
#FFFFFF	3.20	1.00	21.00	21.00
#000000	6.56	21.00	1.00	1.00
##000000	6.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D97B2

Deuteranopia (green-blind)

#7C8AB1

Tritanopia (blue-blind)

#00A4A2

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #399cb1;
/* rgb */ color: rgb(57, 156, 177);
/* oklch */ color: oklch(64.4% 0.095 214.5);

Tailwind

colors: {
  custom: {
    50: '#7eb9c8',
    500: '#399cb1',
    950: '#000000',
  },
}

SCSS

$custom: #399cb1;
$custom-light: #7eb9c8;
$custom-dark: #000000;

JSON

{
  "hex": "#399cb1",
  "rgb": {
    "r": 57,
    "g": 156,
    "b": 177
  },
  "hsl": {
    "h": 190.5,
    "s": 51.282,
    "l": 45.882
  },
  "oklch": {
    "l": 0.64423,
    "c": 0.09486,
    "h": 214.5
  },
  "luminance": 0.27821
}

Semantic roles & 50–950 ramp

primary

#399CB1

secondary

#C48D82

accent

#664DDB

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #399CB1

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

Preview Lab → · Contrast checker → · Palette generator →