#399FC4#399FC4

#399FC4 is a light, moderate cyan. Relative luminance 0.297; OKLCH L 66.0% C 0.107 H 226.2°. Best body text is #000000 at 6.93:1 contrast (WCAG AA passes).

Color values

HEX	#399FC4
RGB	rgb(57, 159, 196)
HSL	hsl(196, 55%, 50%)
HSV	hsv(196, 71%, 77%)
CMYK	cmyk(70.9%, 18.9%, 0%, 23.1%)
CIE-LAB	lab(61.35, -17.18, -27.51)
CIE-LCH	lch(61.35, 32.44, 238.02°)
OKLab	oklab(65.96% -0.0738 -0.077)
OKLCH	oklch(65.96% 0.107 226.2)
XYZ	xyz(24.0452, 29.6489, 56.6694)
Luminance	0.2965 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399FC4 #C45E39

analogous

#39C4A4 #399FC4 #395AC4

triadic

#399FC4 #C4399F #9FC439

tetradic

#399FC4 #A439C4 #C45E39 #5AC439

square

#399FC4 #A439C4 #C45E39 #5AC439

split-complementary

#399FC4 #C4395A #C4A439

monochromatic

#1D5265 #2B7995 #399FC4 #67B6D3 #97CDE1

Accessibility & contrast

On white

3.03

#399FC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.93

#399FC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399FC4

6.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399FC4	#FFFFFF	#000000	##000000
##399FC4	1.00	3.03	6.93	6.93
#FFFFFF	3.03	1.00	21.00	21.00
#000000	6.93	21.00	1.00	1.00
##000000	6.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B9CC6

Deuteranopia (green-blind)

#788EC4

Tritanopia (blue-blind)

#00AAAB

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #399fc4;
/* rgb */ color: rgb(57, 159, 196);
/* oklch */ color: oklch(66.0% 0.107 226.2);

Tailwind

colors: {
  custom: {
    50: '#81bbd6',
    500: '#399fc4',
    950: '#000000',
  },
}

SCSS

$custom: #399fc4;
$custom-light: #81bbd6;
$custom-dark: #000000;

JSON

{
  "hex": "#399fc4",
  "rgb": {
    "r": 57,
    "g": 159,
    "b": 196
  },
  "hsl": {
    "h": 195.971,
    "s": 54.941,
    "l": 49.608
  },
  "oklch": {
    "l": 0.65965,
    "c": 0.1067,
    "h": 226.2
  },
  "luminance": 0.29652
}

Semantic roles & 50–950 ramp

primary

#399FC4

secondary

#CC9E8D

accent

#714ADE

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #399FC4

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

Preview Lab → · Contrast checker → · Palette generator →