#399DCC#399DCC

#399DCC is a light, moderate cyan. Relative luminance 0.293; OKLCH L 65.9% C 0.114 H 232.9°. Best body text is #000000 at 6.87:1 contrast (WCAG AA passes).

Color values

HEX	#399DCC
RGB	rgb(57, 157, 204)
HSL	hsl(199, 59%, 51%)
HSV	hsv(199, 72%, 80%)
CMYK	cmyk(72.1%, 23%, 0%, 20%)
CIE-LAB	lab(61.08, -13.44, -32.41)
CIE-LCH	lch(61.08, 35.08, 247.48°)
OKLab	oklab(65.86% -0.0689 -0.0911)
OKLCH	oklch(65.86% 0.114 232.9)
XYZ	xyz(24.6390, 29.3406, 61.4798)
Luminance	0.2934 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399DCC #CC6839

analogous

#39CCB1 #399DCC #3953CC

triadic

#399DCC #CC399D #9DCC39

tetradic

#399DCC #B139CC #CC6839 #53CC39

square

#399DCC #B139CC #CC6839 #53CC39

split-complementary

#399DCC #CC3953 #CCB139

monochromatic

#1C546E #29799F #399DCC #6AB5D9 #9ACDE5

Accessibility & contrast

On white

3.06

#399DCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.87

#399DCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399DCC

6.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399DCC	#FFFFFF	#000000	##000000
##399DCC	1.00	3.06	6.87	6.87
#FFFFFF	3.06	1.00	21.00	21.00
#000000	6.87	21.00	1.00	1.00
##000000	6.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#869BCE

Deuteranopia (green-blind)

#728DCB

Tritanopia (blue-blind)

#00AAAD

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #399dcc;
/* rgb */ color: rgb(57, 157, 204);
/* oklch */ color: oklch(65.9% 0.114 232.9);

Tailwind

colors: {
  custom: {
    50: '#82b9db',
    500: '#399dcc',
    950: '#000000',
  },
}

SCSS

$custom: #399dcc;
$custom-light: #82b9db;
$custom-dark: #000000;

JSON

{
  "hex": "#399dcc",
  "rgb": {
    "r": 57,
    "g": 157,
    "b": 204
  },
  "hsl": {
    "h": 199.184,
    "s": 59.036,
    "l": 51.176
  },
  "oklch": {
    "l": 0.65858,
    "c": 0.11426,
    "h": 232.9
  },
  "luminance": 0.29343
}

Semantic roles & 50–950 ramp

primary

#399DCC

secondary

#D1A590

accent

#7846E2

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #399DCC

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

Preview Lab → · Contrast checker → · Palette generator →