#399ED0#399ED0

#399ED0 is a light, moderate cyan. Relative luminance 0.299; OKLCH L 66.3% C 0.118 H 234.3°. Best body text is #000000 at 6.98:1 contrast (WCAG AA passes).

Color values

HEX	#399ED0
RGB	rgb(57, 158, 208)
HSL	hsl(200, 62%, 52%)
HSV	hsv(200, 73%, 82%)
CMYK	cmyk(72.6%, 24%, 0%, 18.4%)
CIE-LAB	lab(61.55, -12.64, -33.92)
CIE-LCH	lch(61.55, 36.20, 249.57°)
OKLab	oklab(66.28% -0.0685 -0.0955)
OKLCH	oklch(66.28% 0.118 234.3)
XYZ	xyz(25.2948, 29.8747, 64.0956)
Luminance	0.2988 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399ED0 #D06B39

analogous

#39D0B7 #399ED0 #3952D0

triadic

#399ED0 #D0399E #9ED039

tetradic

#399ED0 #B739D0 #D06B39 #52D039

square

#399ED0 #B739D0 #D06B39 #52D039

split-complementary

#399ED0 #D03952 #D0B739

monochromatic

#1B5673 #277BA5 #399ED0 #6AB6DC #9CCEE7

Accessibility & contrast

On white

3.01

#399ED0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.98

#399ED0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399ED0

6.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399ED0	#FFFFFF	#000000	##000000
##399ED0	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)

#869DD2

Deuteranopia (green-blind)

#718ECF

Tritanopia (blue-blind)

#00ABAF

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #399ed0;
/* rgb */ color: rgb(57, 158, 208);
/* oklch */ color: oklch(66.3% 0.118 234.3);

Tailwind

colors: {
  custom: {
    50: '#83bade',
    500: '#399ed0',
    950: '#000000',
  },
}

SCSS

$custom: #399ed0;
$custom-light: #83bade;
$custom-dark: #000000;

JSON

{
  "hex": "#399ed0",
  "rgb": {
    "r": 57,
    "g": 158,
    "b": 208
  },
  "hsl": {
    "h": 199.868,
    "s": 61.633,
    "l": 51.961
  },
  "oklch": {
    "l": 0.66284,
    "c": 0.11752,
    "h": 234.3
  },
  "luminance": 0.29878
}

Semantic roles & 50–950 ramp

primary

#399ED0

secondary

#D3A791

accent

#7943E5

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #399ED0

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

Preview Lab → · Contrast checker → · Palette generator →