#399CB0#399CB0

#399CB0 is a light, moderate cyan. Relative luminance 0.278; OKLCH L 64.4% C 0.094 H 213.7°. Best body text is #000000 at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#399CB0
RGB	rgb(57, 156, 176)
HSL	hsl(190, 51%, 46%)
HSV	hsv(190, 68%, 69%)
CMYK	cmyk(67.6%, 11.4%, 0%, 31%)
CIE-LAB	lab(59.69, -22.02, -18.81)
CIE-LCH	lch(59.69, 28.96, 220.50°)
OKLab	oklab(64.38% -0.0786 -0.0523)
OKLCH	oklch(64.38% 0.094 213.7)
XYZ	xyz(21.4090, 27.7790, 45.2995)
Luminance	0.2778 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399CB0 #B04D39

analogous

#39B088 #399CB0 #3960B0

triadic

#399CB0 #B0399C #9CB039

tetradic

#399CB0 #8839B0 #B04D39 #60B039

square

#399CB0 #8839B0 #B04D39 #60B039

split-complementary

#399CB0 #B03960 #B08839

monochromatic

#1B4A54 #2A7382 #399CB0 #5CB8CA #8ACCD9

Accessibility & contrast

On white

3.20

#399CB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.56

#399CB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399CB0

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399CB0	#FFFFFF	#000000	##000000
##399CB0	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)

#8D97B1

Deuteranopia (green-blind)

#7C8AB0

Tritanopia (blue-blind)

#00A4A2

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #399cb0;
/* rgb */ color: rgb(57, 156, 176);
/* oklch */ color: oklch(64.4% 0.094 213.7);

Tailwind

colors: {
  custom: {
    50: '#7eb9c7',
    500: '#399cb0',
    950: '#000000',
  },
}

SCSS

$custom: #399cb0;
$custom-light: #7eb9c7;
$custom-dark: #000000;

JSON

{
  "hex": "#399cb0",
  "rgb": {
    "r": 57,
    "g": 156,
    "b": 176
  },
  "hsl": {
    "h": 190.084,
    "s": 51.073,
    "l": 45.686
  },
  "oklch": {
    "l": 0.64382,
    "c": 0.09439,
    "h": 213.7
  },
  "luminance": 0.27781
}

Semantic roles & 50–950 ramp

primary

#399CB0

secondary

#C48C81

accent

#654DDB

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #399CB0

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

Preview Lab → · Contrast checker → · Palette generator →