#399DB1#399DB1

#399DB1 is a light, moderate cyan. Relative luminance 0.282; OKLCH L 64.7% C 0.095 H 213.5°. Best body text is #000000 at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#399DB1
RGB	rgb(57, 157, 177)
HSL	hsl(190, 51%, 46%)
HSV	hsv(190, 68%, 69%)
CMYK	cmyk(67.8%, 11.3%, 0%, 30.6%)
CIE-LAB	lab(60.03, -22.23, -18.85)
CIE-LCH	lch(60.03, 29.15, 220.31°)
OKLab	oklab(64.67% -0.0792 -0.0524)
OKLCH	oklch(64.67% 0.095 213.5)
XYZ	xyz(21.6768, 28.1557, 45.8786)
Luminance	0.2816 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399DB1 #B14D39

analogous

#39B189 #399DB1 #3961B1

triadic

#399DB1 #B1399D #9DB139

tetradic

#399DB1 #8939B1 #B14D39 #61B139

square

#399DB1 #8939B1 #B14D39 #61B139

split-complementary

#399DB1 #B13961 #B18939

monochromatic

#1B4B54 #2A7483 #399DB1 #5DB8CB #8BCCDA

Accessibility & contrast

On white

3.17

#399DB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.63

#399DB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399DB1

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399DB1	#FFFFFF	#000000	##000000
##399DB1	1.00	3.17	6.63	6.63
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.63	21.00	1.00	1.00
##000000	6.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E98B2

Deuteranopia (green-blind)

#7D8BB1

Tritanopia (blue-blind)

#00A5A3

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #399db1;
/* rgb */ color: rgb(57, 157, 177);
/* oklch */ color: oklch(64.7% 0.095 213.5);

Tailwind

colors: {
  custom: {
    50: '#7fbac8',
    500: '#399db1',
    950: '#000000',
  },
}

SCSS

$custom: #399db1;
$custom-light: #7fbac8;
$custom-dark: #000000;

JSON

{
  "hex": "#399db1",
  "rgb": {
    "r": 57,
    "g": 157,
    "b": 177
  },
  "hsl": {
    "h": 190,
    "s": 51.282,
    "l": 45.882
  },
  "oklch": {
    "l": 0.64668,
    "c": 0.09499,
    "h": 213.5
  },
  "luminance": 0.28158
}

Semantic roles & 50–950 ramp

primary

#399DB1

secondary

#C48D82

accent

#654DDB

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #399DB1

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

Preview Lab → · Contrast checker → · Palette generator →