#399EB7#399EB7

#399EB7 is a light, moderate cyan. Relative luminance 0.287; OKLCH L 65.2% C 0.098 H 217.5°. Best body text is #000000 at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#399EB7
RGB	rgb(57, 158, 183)
HSL	hsl(192, 53%, 47%)
HSV	hsv(192, 69%, 72%)
CMYK	cmyk(68.9%, 13.7%, 0%, 28.2%)
CIE-LAB	lab(60.55, -20.85, -21.44)
CIE-LCH	lch(60.55, 29.91, 225.80°)
OKLab	oklab(65.16% -0.0778 -0.0597)
OKLCH	oklch(65.16% 0.098 217.5)
XYZ	xyz(22.4579, 28.7400, 49.1543)
Luminance	0.2874 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399EB7 #B75239

analogous

#39B791 #399EB7 #395FB7

triadic

#399EB7 #B7399E #9EB739

tetradic

#399EB7 #9139B7 #B75239 #5FB739

square

#399EB7 #9139B7 #B75239 #5FB739

split-complementary

#399EB7 #B7395F #B79139

monochromatic

#1C4D5A #2A7688 #399EB7 #60B8CD #8ECDDC

Accessibility & contrast

On white

3.11

#399EB7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.75

#399EB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399EB7

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399EB7	#FFFFFF	#000000	##000000
##399EB7	1.00	3.11	6.75	6.75
#FFFFFF	3.11	1.00	21.00	21.00
#000000	6.75	21.00	1.00	1.00
##000000	6.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E99B8

Deuteranopia (green-blind)

#7C8CB7

Tritanopia (blue-blind)

#00A7A6

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #399eb7;
/* rgb */ color: rgb(57, 158, 183);
/* oklch */ color: oklch(65.2% 0.098 217.5);

Tailwind

colors: {
  custom: {
    50: '#7fbacc',
    500: '#399eb7',
    950: '#000000',
  },
}

SCSS

$custom: #399eb7;
$custom-light: #7fbacc;
$custom-dark: #000000;

JSON

{
  "hex": "#399eb7",
  "rgb": {
    "r": 57,
    "g": 158,
    "b": 183
  },
  "hsl": {
    "h": 191.905,
    "s": 52.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.6516,
    "c": 0.0981,
    "h": 217.5
  },
  "luminance": 0.28742
}

Semantic roles & 50–950 ramp

primary

#399EB7

secondary

#C79285

accent

#684CDC

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #399EB7

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

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