#399ECD#399ECD

#399ECD is a light, moderate cyan. Relative luminance 0.297; OKLCH L 66.1% C 0.115 H 232.7°. Best body text is #000000 at 6.95:1 contrast (WCAG AA passes).

Color values

HEX	#399ECD
RGB	rgb(57, 158, 205)
HSL	hsl(199, 60%, 51%)
HSV	hsv(199, 72%, 80%)
CMYK	cmyk(72.2%, 22.9%, 0%, 19.6%)
CIE-LAB	lab(61.42, -13.65, -32.44)
CIE-LCH	lch(61.42, 35.19, 247.18°)
OKLab	oklab(66.14% -0.0696 -0.0912)
OKLCH	oklch(66.14% 0.115 232.7)
XYZ	xyz(24.9292, 29.7285, 62.1701)
Luminance	0.2973 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399ECD #CD6839

analogous

#39CDB2 #399ECD #3954CD

triadic

#399ECD #CD399E #9ECD39

tetradic

#399ECD #B239CD #CD6839 #54CD39

square

#399ECD #B239CD #CD6839 #54CD39

split-complementary

#399ECD #CD3954 #CDB239

monochromatic

#1C556F #287AA0 #399ECD #6AB6D9 #9BCEE6

Accessibility & contrast

On white

3.02

#399ECD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.95

#399ECD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399ECD

6.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399ECD	#FFFFFF	#000000	##000000
##399ECD	1.00	3.02	6.95	6.95
#FFFFFF	3.02	1.00	21.00	21.00
#000000	6.95	21.00	1.00	1.00
##000000	6.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#879CCF

Deuteranopia (green-blind)

#738ECC

Tritanopia (blue-blind)

#00ABAE

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #399ecd;
/* rgb */ color: rgb(57, 158, 205);
/* oklch */ color: oklch(66.1% 0.115 232.7);

Tailwind

colors: {
  custom: {
    50: '#82badc',
    500: '#399ecd',
    950: '#000000',
  },
}

SCSS

$custom: #399ecd;
$custom-light: #82badc;
$custom-dark: #000000;

JSON

{
  "hex": "#399ecd",
  "rgb": {
    "r": 57,
    "g": 158,
    "b": 205
  },
  "hsl": {
    "h": 199.054,
    "s": 59.677,
    "l": 51.373
  },
  "oklch": {
    "l": 0.66141,
    "c": 0.11471,
    "h": 232.7
  },
  "luminance": 0.29731
}

Semantic roles & 50–950 ramp

primary

#399ECD

secondary

#D2A590

accent

#7745E3

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #399ECD

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

Preview Lab → · Contrast checker → · Palette generator →