#399AB5#399AB5

#399AB5 is a light, moderate cyan. Relative luminance 0.273; OKLCH L 64.1% C 0.097 H 219.8°. Best body text is #000000 at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#399AB5
RGB	rgb(57, 154, 181)
HSL	hsl(193, 52%, 47%)
HSV	hsv(193, 69%, 71%)
CMYK	cmyk(68.5%, 14.9%, 0%, 29%)
CIE-LAB	lab(59.26, -19.39, -22.28)
CIE-LCH	lch(59.26, 29.54, 228.97°)
OKLab	oklab(64.1% -0.0745 -0.0621)
OKLCH	oklch(64.1% 0.097 219.8)
XYZ	xyz(21.5800, 27.3149, 47.8421)
Luminance	0.2732 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399AB5 #B55439

analogous

#39B592 #399AB5 #395CB5

triadic

#399AB5 #B5399A #9AB539

tetradic

#399AB5 #9239B5 #B55439 #5CB539

square

#399AB5 #9239B5 #B55439 #5CB539

split-complementary

#399AB5 #B5395C #B59239

monochromatic

#1C4B58 #2A7286 #399AB5 #5FB5CD #8DCADB

Accessibility & contrast

On white

3.25

#399AB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.46

#399AB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399AB5

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399AB5	#FFFFFF	#000000	##000000
##399AB5	1.00	3.25	6.46	6.46
#FFFFFF	3.25	1.00	21.00	21.00
#000000	6.46	21.00	1.00	1.00
##000000	6.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8996B6

Deuteranopia (green-blind)

#7889B5

Tritanopia (blue-blind)

#00A3A3

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #399ab5;
/* rgb */ color: rgb(57, 154, 181);
/* oklch */ color: oklch(64.1% 0.097 219.8);

Tailwind

colors: {
  custom: {
    50: '#7fb8cb',
    500: '#399ab5',
    950: '#000000',
  },
}

SCSS

$custom: #399ab5;
$custom-light: #7fb8cb;
$custom-dark: #000000;

JSON

{
  "hex": "#399ab5",
  "rgb": {
    "r": 57,
    "g": 154,
    "b": 181
  },
  "hsl": {
    "h": 193.065,
    "s": 52.101,
    "l": 46.667
  },
  "oklch": {
    "l": 0.64102,
    "c": 0.097,
    "h": 219.8
  },
  "luminance": 0.27317
}

Semantic roles & 50–950 ramp

primary

#399AB5

secondary

#C69284

accent

#6B4CDC

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #399AB5

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

Preview Lab → · Contrast checker → · Palette generator →