#399CC9#399CC9

#399CC9 is a light, moderate cyan. Relative luminance 0.289; OKLCH L 65.5% C 0.112 H 231.9°. Best body text is #000000 at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#399CC9
RGB	rgb(57, 156, 201)
HSL	hsl(199, 57%, 51%)
HSV	hsv(199, 72%, 79%)
CMYK	cmyk(71.6%, 22.4%, 0%, 21.2%)
CIE-LAB	lab(60.66, -13.90, -31.38)
CIE-LCH	lch(60.66, 34.32, 246.12°)
OKLab	oklab(65.48% -0.069 -0.0882)
OKLCH	oklch(65.48% 0.112 231.9)
XYZ	xyz(24.1142, 28.8611, 59.5469)
Luminance	0.2886 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399CC9 #C96639

analogous

#39C9AE #399CC9 #3954C9

triadic

#399CC9 #C9399C #9CC939

tetradic

#399CC9 #AE39C9 #C96639 #54C939

square

#399CC9 #AE39C9 #C96639 #54C939

split-complementary

#399CC9 #C93954 #C9AE39

monochromatic

#1D526B #2A779B #399CC9 #69B4D6 #99CCE3

Accessibility & contrast

On white

3.10

#399CC9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.77

#399CC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399CC9

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399CC9	#FFFFFF	#000000	##000000
##399CC9	1.00	3.10	6.77	6.77
#FFFFFF	3.10	1.00	21.00	21.00
#000000	6.77	21.00	1.00	1.00
##000000	6.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#869ACB

Deuteranopia (green-blind)

#728CC8

Tritanopia (blue-blind)

#00A8AB

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #399cc9;
/* rgb */ color: rgb(57, 156, 201);
/* oklch */ color: oklch(65.5% 0.112 231.9);

Tailwind

colors: {
  custom: {
    50: '#82b9d9',
    500: '#399cc9',
    950: '#000000',
  },
}

SCSS

$custom: #399cc9;
$custom-light: #82b9d9;
$custom-dark: #000000;

JSON

{
  "hex": "#399cc9",
  "rgb": {
    "r": 57,
    "g": 156,
    "b": 201
  },
  "hsl": {
    "h": 198.75,
    "s": 57.143,
    "l": 50.588
  },
  "oklch": {
    "l": 0.6548,
    "c": 0.11198,
    "h": 231.9
  },
  "luminance": 0.28864
}

Semantic roles & 50–950 ramp

primary

#399CC9

secondary

#CFA38F

accent

#7747E0

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #399CC9

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

Preview Lab → · Contrast checker → · Palette generator →