#399EB8#399EB8

#399EB8 is a light, moderate cyan. Relative luminance 0.288; OKLCH L 65.2% C 0.099 H 218.3°. Best body text is #000000 at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#399EB8
RGB	rgb(57, 158, 184)
HSL	hsl(192, 53%, 47%)
HSV	hsv(192, 69%, 72%)
CMYK	cmyk(69%, 14.1%, 0%, 27.8%)
CIE-LAB	lab(60.59, -20.53, -21.95)
CIE-LCH	lch(60.59, 30.05, 226.90°)
OKLab	oklab(65.2% -0.0774 -0.0612)
OKLCH	oklch(65.2% 0.099 218.3)
XYZ	xyz(22.5623, 28.7817, 49.7044)
Luminance	0.2878 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399EB8 #B85339

analogous

#39B892 #399EB8 #395FB8

triadic

#399EB8 #B8399E #9EB839

tetradic

#399EB8 #9239B8 #B85339 #5FB839

square

#399EB8 #9239B8 #B85339 #5FB839

split-complementary

#399EB8 #B8395F #B89239

monochromatic

#1C4E5B #2B7689 #399EB8 #60B7CE #8FCDDC

Accessibility & contrast

On white

3.11

#399EB8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.76

#399EB8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399EB8

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399EB8	#FFFFFF	#000000	##000000
##399EB8	1.00	3.11	6.76	6.76
#FFFFFF	3.11	1.00	21.00	21.00
#000000	6.76	21.00	1.00	1.00
##000000	6.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D9AB9

Deuteranopia (green-blind)

#7C8CB8

Tritanopia (blue-blind)

#00A7A6

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #399eb8;
/* rgb */ color: rgb(57, 158, 184);
/* oklch */ color: oklch(65.2% 0.099 218.3);

Tailwind

colors: {
  custom: {
    50: '#7fbacd',
    500: '#399eb8',
    950: '#000000',
  },
}

SCSS

$custom: #399eb8;
$custom-light: #7fbacd;
$custom-dark: #000000;

JSON

{
  "hex": "#399eb8",
  "rgb": {
    "r": 57,
    "g": 158,
    "b": 184
  },
  "hsl": {
    "h": 192.283,
    "s": 52.697,
    "l": 47.255
  },
  "oklch": {
    "l": 0.65202,
    "c": 0.09868,
    "h": 218.3
  },
  "luminance": 0.28784
}

Semantic roles & 50–950 ramp

primary

#399EB8

secondary

#C79386

accent

#694CDC

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #399EB8

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

Preview Lab → · Contrast checker → · Palette generator →