#399AB3#399AB3

#399AB3 is a light, moderate cyan. Relative luminance 0.272; OKLCH L 64.0% C 0.096 H 218.2°. Best body text is #000000 at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#399AB3
RGB	rgb(57, 154, 179)
HSL	hsl(192, 52%, 46%)
HSV	hsv(192, 68%, 70%)
CMYK	cmyk(68.2%, 14%, 0%, 29.8%)
CIE-LAB	lab(59.19, -20.03, -21.27)
CIE-LCH	lch(59.19, 29.21, 226.72°)
OKLab	oklab(64.02% -0.0753 -0.0593)
OKLCH	oklch(64.02% 0.096 218.2)
XYZ	xyz(21.3763, 27.2334, 46.7691)
Luminance	0.2724 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399AB3 #B35239

analogous

#39B38F #399AB3 #395DB3

triadic

#399AB3 #B3399A #9AB339

tetradic

#399AB3 #8F39B3 #B35239 #5DB339

square

#399AB3 #8F39B3 #B35239 #5DB339

split-complementary

#399AB3 #B3395D #B38F39

monochromatic

#1B4A56 #2A7285 #399AB3 #5EB5CC #8CCADA

Accessibility & contrast

On white

3.26

#399AB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.45

#399AB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399AB3

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399AB3	#FFFFFF	#000000	##000000
##399AB3	1.00	3.26	6.45	6.45
#FFFFFF	3.26	1.00	21.00	21.00
#000000	6.45	21.00	1.00	1.00
##000000	6.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A96B4

Deuteranopia (green-blind)

#7989B3

Tritanopia (blue-blind)

#00A3A2

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #399ab3;
/* rgb */ color: rgb(57, 154, 179);
/* oklch */ color: oklch(64.0% 0.096 218.2);

Tailwind

colors: {
  custom: {
    50: '#7fb8c9',
    500: '#399ab3',
    950: '#000000',
  },
}

SCSS

$custom: #399ab3;
$custom-light: #7fb8c9;
$custom-dark: #000000;

JSON

{
  "hex": "#399ab3",
  "rgb": {
    "r": 57,
    "g": 154,
    "b": 179
  },
  "hsl": {
    "h": 192.295,
    "s": 51.695,
    "l": 46.275
  },
  "oklch": {
    "l": 0.64018,
    "c": 0.0958,
    "h": 218.2
  },
  "luminance": 0.27236
}

Semantic roles & 50–950 ramp

primary

#399AB3

secondary

#C59083

accent

#6A4DDB

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #399AB3

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

Preview Lab → · Contrast checker → · Palette generator →