#399BB6#399BB6

#399BB6 is a light, moderate cyan. Relative luminance 0.277; OKLCH L 64.4% C 0.098 H 219.7°. Best body text is #000000 at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#399BB6
RGB	rgb(57, 155, 182)
HSL	hsl(193, 52%, 47%)
HSV	hsv(193, 69%, 71%)
CMYK	cmyk(68.7%, 14.8%, 0%, 28.6%)
CIE-LAB	lab(59.61, -19.60, -22.32)
CIE-LCH	lch(59.61, 29.70, 228.72°)
OKLab	oklab(64.39% -0.0751 -0.0623)
OKLCH	oklch(64.39% 0.098 219.7)
XYZ	xyz(21.8487, 27.6875, 48.4396)
Luminance	0.2769 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399BB6 #B65439

analogous

#39B693 #399BB6 #395DB6

triadic

#399BB6 #B6399B #9BB639

tetradic

#399BB6 #9339B6 #B65439 #5DB639

square

#399BB6 #9339B6 #B65439 #5DB639

split-complementary

#399BB6 #B6395D #B69339

monochromatic

#1C4C59 #2A7387 #399BB6 #5FB5CD #8ECBDC

Accessibility & contrast

On white

3.21

#399BB6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.54

#399BB6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399BB6

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399BB6	#FFFFFF	#000000	##000000
##399BB6	1.00	3.21	6.54	6.54
#FFFFFF	3.21	1.00	21.00	21.00
#000000	6.54	21.00	1.00	1.00
##000000	6.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A97B7

Deuteranopia (green-blind)

#798AB6

Tritanopia (blue-blind)

#00A4A4

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #399bb6;
/* rgb */ color: rgb(57, 155, 182);
/* oklch */ color: oklch(64.4% 0.098 219.7);

Tailwind

colors: {
  custom: {
    50: '#7fb8cc',
    500: '#399bb6',
    950: '#000000',
  },
}

SCSS

$custom: #399bb6;
$custom-light: #7fb8cc;
$custom-dark: #000000;

JSON

{
  "hex": "#399bb6",
  "rgb": {
    "r": 57,
    "g": 155,
    "b": 182
  },
  "hsl": {
    "h": 192.96,
    "s": 52.301,
    "l": 46.863
  },
  "oklch": {
    "l": 0.64388,
    "c": 0.09757,
    "h": 219.7
  },
  "luminance": 0.2769
}

Semantic roles & 50–950 ramp

primary

#399BB6

secondary

#C69385

accent

#6B4CDC

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #399BB6

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

Preview Lab → · Contrast checker → · Palette generator →