#399FCC#399FCC

#399FCC is a light, moderate cyan. Relative luminance 0.300; OKLCH L 66.3% C 0.113 H 231.3°. Best body text is #000000 at 7.01:1 contrast (WCAG AA passes).

Color values

HEX	#399FCC
RGB	rgb(57, 159, 204)
HSL	hsl(198, 59%, 51%)
HSV	hsv(198, 72%, 80%)
CMYK	cmyk(72.1%, 22.1%, 0%, 20%)
CIE-LAB	lab(61.67, -14.53, -31.49)
CIE-LCH	lch(61.67, 34.68, 245.23°)
OKLab	oklab(66.33% -0.0709 -0.0884)
OKLCH	oklch(66.33% 0.113 231.3)
XYZ	xyz(24.9802, 30.0229, 61.5935)
Luminance	0.3003 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399FCC #CC6639

analogous

#39CCAF #399FCC #3955CC

triadic

#399FCC #CC399F #9FCC39

tetradic

#399FCC #AF39CC #CC6639 #55CC39

square

#399FCC #AF39CC #CC6639 #55CC39

split-complementary

#399FCC #CC3955 #CCAF39

monochromatic

#1C556E #297B9F #399FCC #6AB7D9 #9ACEE5

Accessibility & contrast

On white

3.00

#399FCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

7.01

#399FCC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #399FCC

7.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399FCC	#FFFFFF	#000000	##000000
##399FCC	1.00	3.00	7.01	7.01
#FFFFFF	3.00	1.00	21.00	21.00
#000000	7.01	21.00	1.00	1.00
##000000	7.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#889DCE

Deuteranopia (green-blind)

#748FCB

Tritanopia (blue-blind)

#00ABAE

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #399fcc;
/* rgb */ color: rgb(57, 159, 204);
/* oklch */ color: oklch(66.3% 0.113 231.3);

Tailwind

colors: {
  custom: {
    50: '#82bbdb',
    500: '#399fcc',
    950: '#000000',
  },
}

SCSS

$custom: #399fcc;
$custom-light: #82bbdb;
$custom-dark: #000000;

JSON

{
  "hex": "#399fcc",
  "rgb": {
    "r": 57,
    "g": 159,
    "b": 204
  },
  "hsl": {
    "h": 198.367,
    "s": 59.036,
    "l": 51.176
  },
  "oklch": {
    "l": 0.66331,
    "c": 0.11336,
    "h": 231.3
  },
  "luminance": 0.30026
}

Semantic roles & 50–950 ramp

primary

#399FCC

secondary

#D1A490

accent

#7646E2

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #399FCC

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

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