#399DBB#399DBB

#399DBB is a light, moderate cyan. Relative luminance 0.286; OKLCH L 65.1% C 0.101 H 221.6°. Best body text is #000000 at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#399DBB
RGB	rgb(57, 157, 187)
HSL	hsl(194, 53%, 48%)
HSV	hsv(194, 70%, 73%)
CMYK	cmyk(69.5%, 16%, 0%, 26.7%)
CIE-LAB	lab(60.40, -19.04, -23.92)
CIE-LCH	lch(60.40, 30.58, 231.48°)
OKLab	oklab(65.09% -0.0752 -0.0668)
OKLCH	oklch(65.09% 0.101 221.6)
XYZ	xyz(22.7103, 28.5691, 51.3216)
Luminance	0.2857 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399DBB #BB5739

analogous

#39BB98 #399DBB #395CBB

triadic

#399DBB #BB399D #9DBB39

tetradic

#399DBB #9839BB #BB5739 #5CBB39

square

#399DBB #9839BB #BB5739 #5CBB39

split-complementary

#399DBB #BB395C #BB9839

monochromatic

#1C4E5D #2B768C #399DBB #62B6CF #91CCDD

Accessibility & contrast

On white

3.13

#399DBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.71

#399DBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399DBB

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399DBB	#FFFFFF	#000000	##000000
##399DBB	1.00	3.13	6.71	6.71
#FFFFFF	3.13	1.00	21.00	21.00
#000000	6.71	21.00	1.00	1.00
##000000	6.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B99BD

Deuteranopia (green-blind)

#798CBB

Tritanopia (blue-blind)

#00A7A7

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #399dbb;
/* rgb */ color: rgb(57, 157, 187);
/* oklch */ color: oklch(65.1% 0.101 221.6);

Tailwind

colors: {
  custom: {
    50: '#80bacf',
    500: '#399dbb',
    950: '#000000',
  },
}

SCSS

$custom: #399dbb;
$custom-light: #80bacf;
$custom-dark: #000000;

JSON

{
  "hex": "#399dbb",
  "rgb": {
    "r": 57,
    "g": 157,
    "b": 187
  },
  "hsl": {
    "h": 193.846,
    "s": 53.279,
    "l": 47.843
  },
  "oklch": {
    "l": 0.65088,
    "c": 0.1006,
    "h": 221.6
  },
  "luminance": 0.28572
}

Semantic roles & 50–950 ramp

primary

#399DBB

secondary

#C89687

accent

#6D4BDD

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #399DBB

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

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