#399CC3#399CC3

#399CC3 is a light, moderate cyan. Relative luminance 0.286; OKLCH L 65.2% C 0.107 H 228.2°. Best body text is #000000 at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#399CC3
RGB	rgb(57, 156, 195)
HSL	hsl(197, 55%, 49%)
HSV	hsv(197, 71%, 76%)
CMYK	cmyk(70.8%, 20%, 0%, 23.5%)
CIE-LAB	lab(60.41, -15.89, -28.40)
CIE-LCH	lch(60.41, 32.55, 240.77°)
OKLab	oklab(65.2% -0.0712 -0.0796)
OKLCH	oklch(65.2% 0.107 228.2)
XYZ	xyz(23.4222, 28.5843, 55.9021)
Luminance	0.2859 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399CC3 #C36039

analogous

#39C3A5 #399CC3 #3957C3

triadic

#399CC3 #C3399C #9CC339

tetradic

#399CC3 #A539C3 #C36039 #57C339

square

#399CC3 #A539C3 #C36039 #57C339

split-complementary

#399CC3 #C33957 #C3A539

monochromatic

#1D5064 #2B7694 #399CC3 #67B4D2 #96CBE0

Accessibility & contrast

On white

3.13

#399CC3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.72

#399CC3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399CC3

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399CC3	#FFFFFF	#000000	##000000
##399CC3	1.00	3.13	6.72	6.72
#FFFFFF	3.13	1.00	21.00	21.00
#000000	6.72	21.00	1.00	1.00
##000000	6.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8899C5

Deuteranopia (green-blind)

#758CC2

Tritanopia (blue-blind)

#00A7A9

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #399cc3;
/* rgb */ color: rgb(57, 156, 195);
/* oklch */ color: oklch(65.2% 0.107 228.2);

Tailwind

colors: {
  custom: {
    50: '#81b9d5',
    500: '#399cc3',
    950: '#000000',
  },
}

SCSS

$custom: #399cc3;
$custom-light: #81b9d5;
$custom-dark: #000000;

JSON

{
  "hex": "#399cc3",
  "rgb": {
    "r": 57,
    "g": 156,
    "b": 195
  },
  "hsl": {
    "h": 196.957,
    "s": 54.762,
    "l": 49.412
  },
  "oklch": {
    "l": 0.65203,
    "c": 0.10679,
    "h": 228.2
  },
  "luminance": 0.28587
}

Semantic roles & 50–950 ramp

primary

#399CC3

secondary

#CC9E8C

accent

#744ADE

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #399CC3

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

Preview Lab → · Contrast checker → · Palette generator →