#399DC5#399DC5

#399DC5 is a light, moderate cyan. Relative luminance 0.290; OKLCH L 65.5% C 0.108 H 228.6°. Best body text is #000000 at 6.80:1 contrast (WCAG AA passes).

Color values

HEX	#399DC5
RGB	rgb(57, 157, 197)
HSL	hsl(197, 55%, 50%)
HSV	hsv(197, 71%, 77%)
CMYK	cmyk(71.1%, 20.3%, 0%, 22.7%)
CIE-LAB	lab(60.79, -15.77, -28.94)
CIE-LCH	lch(60.79, 32.96, 241.41°)
OKLab	oklab(65.53% -0.0714 -0.0811)
OKLCH	oklch(65.53% 0.108 228.6)
XYZ	xyz(23.8183, 29.0123, 57.1571)
Luminance	0.2902 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399DC5 #C56139

analogous

#39C5A7 #399DC5 #3957C5

triadic

#399DC5 #C5399D #9DC539

tetradic

#399DC5 #A739C5 #C56139 #57C539

square

#399DC5 #A739C5 #C56139 #57C539

split-complementary

#399DC5 #C53957 #C5A739

monochromatic

#1E5166 #2B7796 #399DC5 #68B5D3 #97CCE1

Accessibility & contrast

On white

3.09

#399DC5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.80

#399DC5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399DC5

6.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399DC5	#FFFFFF	#000000	##000000
##399DC5	1.00	3.09	6.80	6.80
#FFFFFF	3.09	1.00	21.00	21.00
#000000	6.80	21.00	1.00	1.00
##000000	6.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#889AC7

Deuteranopia (green-blind)

#758DC4

Tritanopia (blue-blind)

#00A8AA

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #399dc5;
/* rgb */ color: rgb(57, 157, 197);
/* oklch */ color: oklch(65.5% 0.108 228.6);

Tailwind

colors: {
  custom: {
    50: '#81bad6',
    500: '#399dc5',
    950: '#000000',
  },
}

SCSS

$custom: #399dc5;
$custom-light: #81bad6;
$custom-dark: #000000;

JSON

{
  "hex": "#399dc5",
  "rgb": {
    "r": 57,
    "g": 157,
    "b": 197
  },
  "hsl": {
    "h": 197.143,
    "s": 55.118,
    "l": 49.804
  },
  "oklch": {
    "l": 0.65532,
    "c": 0.10811,
    "h": 228.6
  },
  "luminance": 0.29015
}

Semantic roles & 50–950 ramp

primary

#399DC5

secondary

#CD9F8D

accent

#7449DE

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #399DC5

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

Preview Lab → · Contrast checker → · Palette generator →