#399FC5#399FC5

#399FC5 is a light, moderate cyan. Relative luminance 0.297; OKLCH L 66.0% C 0.107 H 226.9°. Best body text is #000000 at 6.94:1 contrast (WCAG AA passes).

Color values

HEX	#399FC5
RGB	rgb(57, 159, 197)
HSL	hsl(196, 55%, 50%)
HSV	hsv(196, 71%, 77%)
CMYK	cmyk(71.1%, 19.3%, 0%, 22.7%)
CIE-LAB	lab(61.39, -16.85, -28.01)
CIE-LCH	lch(61.39, 32.69, 238.97°)
OKLab	oklab(66.01% -0.0734 -0.0785)
OKLCH	oklch(66.01% 0.107 226.9)
XYZ	xyz(24.1594, 29.6946, 57.2709)
Luminance	0.2970 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399FC5 #C55F39

analogous

#39C5A5 #399FC5 #3959C5

triadic

#399FC5 #C5399F #9FC539

tetradic

#399FC5 #A539C5 #C55F39 #59C539

square

#399FC5 #A539C5 #C55F39 #59C539

split-complementary

#399FC5 #C53959 #C5A539

monochromatic

#1E5266 #2B7996 #399FC5 #68B6D3 #97CDE1

Accessibility & contrast

On white

3.03

#399FC5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.94

#399FC5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399FC5

6.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399FC5	#FFFFFF	#000000	##000000
##399FC5	1.00	3.03	6.94	6.94
#FFFFFF	3.03	1.00	21.00	21.00
#000000	6.94	21.00	1.00	1.00
##000000	6.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B9CC7

Deuteranopia (green-blind)

#778EC5

Tritanopia (blue-blind)

#00AAAB

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #399fc5;
/* rgb */ color: rgb(57, 159, 197);
/* oklch */ color: oklch(66.0% 0.107 226.9);

Tailwind

colors: {
  custom: {
    50: '#81bbd6',
    500: '#399fc5',
    950: '#000000',
  },
}

SCSS

$custom: #399fc5;
$custom-light: #81bbd6;
$custom-dark: #000000;

JSON

{
  "hex": "#399fc5",
  "rgb": {
    "r": 57,
    "g": 159,
    "b": 197
  },
  "hsl": {
    "h": 196.286,
    "s": 55.118,
    "l": 49.804
  },
  "oklch": {
    "l": 0.6601,
    "c": 0.10748,
    "h": 226.9
  },
  "luminance": 0.29697
}

Semantic roles & 50–950 ramp

primary

#399FC5

secondary

#CD9E8D

accent

#7249DE

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #399FC5

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

Preview Lab → · Contrast checker → · Palette generator →