#399EC4#399EC4

#399EC4 is a light, moderate cyan. Relative luminance 0.293; OKLCH L 65.7% C 0.107 H 227.1°. Best body text is #000000 at 6.86:1 contrast (WCAG AA passes).

Color values

HEX	#399EC4
RGB	rgb(57, 158, 196)
HSL	hsl(196, 55%, 50%)
HSV	hsv(196, 71%, 77%)
CMYK	cmyk(70.9%, 19.4%, 0%, 23.1%)
CIE-LAB	lab(61.05, -16.64, -27.98)
CIE-LCH	lch(61.05, 32.55, 239.25°)
OKLab	oklab(65.73% -0.0728 -0.0784)
OKLCH	oklch(65.73% 0.107 227.1)
XYZ	xyz(23.8740, 29.3064, 56.6123)
Luminance	0.2931 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399EC4 #C45F39

analogous

#39C4A5 #399EC4 #3958C4

triadic

#399EC4 #C4399E #9EC439

tetradic

#399EC4 #A539C4 #C45F39 #58C439

square

#399EC4 #A539C4 #C45F39 #58C439

split-complementary

#399EC4 #C43958 #C4A539

monochromatic

#1D5265 #2B7895 #399EC4 #67B5D3 #97CCE1

Accessibility & contrast

On white

3.06

#399EC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.86

#399EC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399EC4

6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399EC4	#FFFFFF	#000000	##000000
##399EC4	1.00	3.06	6.86	6.86
#FFFFFF	3.06	1.00	21.00	21.00
#000000	6.86	21.00	1.00	1.00
##000000	6.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A9BC6

Deuteranopia (green-blind)

#778DC4

Tritanopia (blue-blind)

#00A9AA

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #399ec4;
/* rgb */ color: rgb(57, 158, 196);
/* oklch */ color: oklch(65.7% 0.107 227.1);

Tailwind

colors: {
  custom: {
    50: '#81bad6',
    500: '#399ec4',
    950: '#000000',
  },
}

SCSS

$custom: #399ec4;
$custom-light: #81bad6;
$custom-dark: #000000;

JSON

{
  "hex": "#399ec4",
  "rgb": {
    "r": 57,
    "g": 158,
    "b": 196
  },
  "hsl": {
    "h": 196.403,
    "s": 54.941,
    "l": 49.608
  },
  "oklch": {
    "l": 0.65726,
    "c": 0.10698,
    "h": 227.1
  },
  "luminance": 0.29309
}

Semantic roles & 50–950 ramp

primary

#399EC4

secondary

#CC9E8D

accent

#724ADE

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #399EC4

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

Preview Lab → · Contrast checker → · Palette generator →