#399FD0#399FD0

#399FD0 is a light, moderate cyan. Relative luminance 0.302; OKLCH L 66.5% C 0.117 H 233.6°. Best body text is #000000 at 7.04:1 contrast (WCAG AA passes).

Color values

HEX	#399FD0
RGB	rgb(57, 159, 208)
HSL	hsl(199, 62%, 52%)
HSV	hsv(199, 73%, 82%)
CMYK	cmyk(72.6%, 23.6%, 0%, 18.4%)
CIE-LAB	lab(61.84, -13.18, -33.46)
CIE-LCH	lch(61.84, 35.96, 248.49°)
OKLab	oklab(66.52% -0.0695 -0.0941)
OKLCH	oklch(66.52% 0.117 233.6)
XYZ	xyz(25.4661, 30.2173, 64.1526)
Luminance	0.3022 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399FD0 #D06A39

analogous

#39D0B6 #399FD0 #3954D0

triadic

#399FD0 #D0399F #9FD039

tetradic

#399FD0 #B639D0 #D06A39 #54D039

square

#399FD0 #B639D0 #D06A39 #54D039

split-complementary

#399FD0 #D03954 #D0B639

monochromatic

#1B5773 #277CA5 #399FD0 #6AB7DC #9CCFE7

Accessibility & contrast

On white

2.98

#399FD0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.04

#399FD0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #399FD0

7.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399FD0	#FFFFFF	#000000	##000000
##399FD0	1.00	2.98	7.04	7.04
#FFFFFF	2.98	1.00	21.00	21.00
#000000	7.04	21.00	1.00	1.00
##000000	7.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#879ED2

Deuteranopia (green-blind)

#728FCF

Tritanopia (blue-blind)

#00ACB0

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #399fd0;
/* rgb */ color: rgb(57, 159, 208);
/* oklch */ color: oklch(66.5% 0.117 233.6);

Tailwind

colors: {
  custom: {
    50: '#83bbde',
    500: '#399fd0',
    950: '#000000',
  },
}

SCSS

$custom: #399fd0;
$custom-light: #83bbde;
$custom-dark: #000000;

JSON

{
  "hex": "#399fd0",
  "rgb": {
    "r": 57,
    "g": 159,
    "b": 208
  },
  "hsl": {
    "h": 199.47,
    "s": 61.633,
    "l": 51.961
  },
  "oklch": {
    "l": 0.66519,
    "c": 0.11701,
    "h": 233.6
  },
  "luminance": 0.3022
}

Semantic roles & 50–950 ramp

primary

#399FD0

secondary

#D3A791

accent

#7843E5

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #399FD0

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

Preview Lab → · Contrast checker → · Palette generator →