#399DB2#399DB2

#399DB2 is a light, moderate cyan. Relative luminance 0.282; OKLCH L 64.7% C 0.095 H 214.4°. Best body text is #000000 at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#399DB2
RGB	rgb(57, 157, 178)
HSL	hsl(190, 51%, 46%)
HSV	hsv(190, 68%, 70%)
CMYK	cmyk(68%, 11.8%, 0%, 30.2%)
CIE-LAB	lab(60.07, -21.91, -19.36)
CIE-LCH	lch(60.07, 29.24, 221.46°)
OKLab	oklab(64.71% -0.0788 -0.0539)
OKLCH	oklch(64.71% 0.095 214.4)
XYZ	xyz(21.7768, 28.1957, 46.4055)
Luminance	0.2820 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399DB2 #B24E39

analogous

#39B28A #399DB2 #3960B2

triadic

#399DB2 #B2399D #9DB239

tetradic

#399DB2 #8A39B2 #B24E39 #60B239

square

#399DB2 #8A39B2 #B24E39 #60B239

split-complementary

#399DB2 #B23960 #B28A39

monochromatic

#1B4B55 #2A7484 #399DB2 #5DB8CB #8BCCDA

Accessibility & contrast

On white

3.16

#399DB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.64

#399DB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399DB2

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399DB2	#FFFFFF	#000000	##000000
##399DB2	1.00	3.16	6.64	6.64
#FFFFFF	3.16	1.00	21.00	21.00
#000000	6.64	21.00	1.00	1.00
##000000	6.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E98B3

Deuteranopia (green-blind)

#7D8BB2

Tritanopia (blue-blind)

#00A5A3

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #399db2;
/* rgb */ color: rgb(57, 157, 178);
/* oklch */ color: oklch(64.7% 0.095 214.4);

Tailwind

colors: {
  custom: {
    50: '#7fbac9',
    500: '#399db2',
    950: '#000000',
  },
}

SCSS

$custom: #399db2;
$custom-light: #7fbac9;
$custom-dark: #000000;

JSON

{
  "hex": "#399db2",
  "rgb": {
    "r": 57,
    "g": 157,
    "b": 178
  },
  "hsl": {
    "h": 190.413,
    "s": 51.489,
    "l": 46.078
  },
  "oklch": {
    "l": 0.64709,
    "c": 0.09546,
    "h": 214.4
  },
  "luminance": 0.28198
}

Semantic roles & 50–950 ramp

primary

#399DB2

secondary

#C48E82

accent

#664DDB

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #399DB2

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

Preview Lab → · Contrast checker → · Palette generator →