#399FC9#399FC9

#399FC9 is a light, moderate cyan. Relative luminance 0.299; OKLCH L 66.2% C 0.111 H 229.5°. Best body text is #000000 at 6.98:1 contrast (WCAG AA passes).

Color values

HEX	#399FC9
RGB	rgb(57, 159, 201)
HSL	hsl(198, 57%, 51%)
HSV	hsv(198, 72%, 79%)
CMYK	cmyk(71.6%, 20.9%, 0%, 21.2%)
CIE-LAB	lab(61.55, -15.53, -30.00)
CIE-LCH	lch(61.55, 33.78, 242.64°)
OKLab	oklab(66.19% -0.072 -0.0842)
OKLCH	oklch(66.19% 0.111 229.5)
XYZ	xyz(24.6238, 29.8804, 59.7168)
Luminance	0.2988 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399FC9 #C96339

analogous

#39C9AB #399FC9 #3957C9

triadic

#399FC9 #C9399F #9FC939

tetradic

#399FC9 #AB39C9 #C96339 #57C939

square

#399FC9 #AB39C9 #C96339 #57C939

split-complementary

#399FC9 #C93957 #C9AB39

monochromatic

#1D546B #2A7A9B #399FC9 #69B6D6 #99CEE3

Accessibility & contrast

On white

3.01

#399FC9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.98

#399FC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399FC9

6.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399FC9	#FFFFFF	#000000	##000000
##399FC9	1.00	3.01	6.98	6.98
#FFFFFF	3.01	1.00	21.00	21.00
#000000	6.98	21.00	1.00	1.00
##000000	6.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#899DCB

Deuteranopia (green-blind)

#768EC8

Tritanopia (blue-blind)

#00ABAD

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #399fc9;
/* rgb */ color: rgb(57, 159, 201);
/* oklch */ color: oklch(66.2% 0.111 229.5);

Tailwind

colors: {
  custom: {
    50: '#82bbd9',
    500: '#399fc9',
    950: '#000000',
  },
}

SCSS

$custom: #399fc9;
$custom-light: #82bbd9;
$custom-dark: #000000;

JSON

{
  "hex": "#399fc9",
  "rgb": {
    "r": 57,
    "g": 159,
    "b": 201
  },
  "hsl": {
    "h": 197.5,
    "s": 57.143,
    "l": 50.588
  },
  "oklch": {
    "l": 0.66192,
    "c": 0.11076,
    "h": 229.5
  },
  "luminance": 0.29883
}

Semantic roles & 50–950 ramp

primary

#399FC9

secondary

#CFA28F

accent

#7447E0

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #399FC9

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

Preview Lab → · Contrast checker → · Palette generator →