#399CBC#399CBC

#399CBC is a light, moderate cyan. Relative luminance 0.283; OKLCH L 64.9% C 0.101 H 223.3°. Best body text is #000000 at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#399CBC
RGB	rgb(57, 156, 188)
HSL	hsl(195, 53%, 48%)
HSV	hsv(195, 70%, 74%)
CMYK	cmyk(69.7%, 17%, 0%, 26.3%)
CIE-LAB	lab(60.14, -18.19, -24.89)
CIE-LCH	lch(60.14, 30.83, 233.84°)
OKLab	oklab(64.89% -0.0738 -0.0696)
OKLCH	oklch(64.89% 0.101 223.3)
XYZ	xyz(22.6492, 28.2751, 51.8312)
Luminance	0.2828 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399CBC #BC5939

analogous

#39BC9A #399CBC #395BBC

triadic

#399CBC #BC399C #9CBC39

tetradic

#399CBC #9A39BC #BC5939 #5BBC39

square

#399CBC #9A39BC #BC5939 #5BBC39

split-complementary

#399CBC #BC395B #BC9A39

monochromatic

#1D4E5E #2B758D #399CBC #63B5D0 #92CBDE

Accessibility & contrast

On white

3.16

#399CBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.66

#399CBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399CBC

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399CBC	#FFFFFF	#000000	##000000
##399CBC	1.00	3.16	6.66	6.66
#FFFFFF	3.16	1.00	21.00	21.00
#000000	6.66	21.00	1.00	1.00
##000000	6.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A98BE

Deuteranopia (green-blind)

#788BBC

Tritanopia (blue-blind)

#00A6A6

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #399cbc;
/* rgb */ color: rgb(57, 156, 188);
/* oklch */ color: oklch(64.9% 0.101 223.3);

Tailwind

colors: {
  custom: {
    50: '#80b9d0',
    500: '#399cbc',
    950: '#000000',
  },
}

SCSS

$custom: #399cbc;
$custom-light: #80b9d0;
$custom-dark: #000000;

JSON

{
  "hex": "#399cbc",
  "rgb": {
    "r": 57,
    "g": 156,
    "b": 188
  },
  "hsl": {
    "h": 194.656,
    "s": 53.469,
    "l": 48.039
  },
  "oklch": {
    "l": 0.6489,
    "c": 0.10143,
    "h": 223.3
  },
  "luminance": 0.28278
}

Semantic roles & 50–950 ramp

primary

#399CBC

secondary

#C99888

accent

#6F4BDD

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0B1114

muted

#7C8082

Preview Lab

Preview with #399CBC

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

Preview Lab → · Contrast checker → · Palette generator →