#399CBB#399CBB

#399CBB is a light, moderate cyan. Relative luminance 0.282; OKLCH L 64.8% C 0.101 H 222.6°. Best body text is #000000 at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#399CBB
RGB	rgb(57, 156, 187)
HSL	hsl(194, 53%, 48%)
HSV	hsv(194, 70%, 73%)
CMYK	cmyk(69.5%, 16.6%, 0%, 26.7%)
CIE-LAB	lab(60.10, -18.51, -24.39)
CIE-LCH	lch(60.10, 30.62, 232.80°)
OKLab	oklab(64.85% -0.0742 -0.0681)
OKLCH	oklch(64.85% 0.101 222.6)
XYZ	xyz(22.5418, 28.2321, 51.2654)
Luminance	0.2823 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399CBB #BB5839

analogous

#39BB99 #399CBB #395BBB

triadic

#399CBB #BB399C #9CBB39

tetradic

#399CBB #9939BB #BB5839 #5BBB39

square

#399CBB #9939BB #BB5839 #5BBB39

split-complementary

#399CBB #BB395B #BB9939

monochromatic

#1C4E5D #2B758C #399CBB #62B5CF #91CBDD

Accessibility & contrast

On white

3.16

#399CBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.65

#399CBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399CBB

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399CBB	#FFFFFF	#000000	##000000
##399CBB	1.00	3.16	6.65	6.65
#FFFFFF	3.16	1.00	21.00	21.00
#000000	6.65	21.00	1.00	1.00
##000000	6.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A98BD

Deuteranopia (green-blind)

#788BBB

Tritanopia (blue-blind)

#00A6A6

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #399cbb;
/* rgb */ color: rgb(57, 156, 187);
/* oklch */ color: oklch(64.8% 0.101 222.6);

Tailwind

colors: {
  custom: {
    50: '#80b9cf',
    500: '#399cbb',
    950: '#000000',
  },
}

SCSS

$custom: #399cbb;
$custom-light: #80b9cf;
$custom-dark: #000000;

JSON

{
  "hex": "#399cbb",
  "rgb": {
    "r": 57,
    "g": 156,
    "b": 187
  },
  "hsl": {
    "h": 194.308,
    "s": 53.279,
    "l": 47.843
  },
  "oklch": {
    "l": 0.64846,
    "c": 0.10073,
    "h": 222.6
  },
  "luminance": 0.28235
}

Semantic roles & 50–950 ramp

primary

#399CBB

secondary

#C89787

accent

#6E4BDD

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #399CBB

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

Preview Lab → · Contrast checker → · Palette generator →