#3F5366#3F5366

#3F5366 is a dark, muted cyan. Relative luminance 0.082; OKLCH L 43.3% C 0.040 H 247.5°. Best body text is #FFFFFF at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#3F5366
RGB	rgb(63, 83, 102)
HSL	hsl(209, 24%, 32%)
HSV	hsv(209, 38%, 40%)
CMYK	cmyk(38.2%, 18.6%, 0%, 60%)
CIE-LAB	lab(34.40, -2.40, -13.45)
CIE-LCH	lch(34.40, 13.66, 259.90°)
OKLab	oklab(43.34% -0.0154 -0.0371)
OKLCH	oklch(43.34% 0.04 247.5)
XYZ	xyz(7.5407, 8.2022, 13.7536)
Luminance	0.0820 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5366 #66523F

analogous

#3F6666 #3F5366 #3F4066

triadic

#3F5366 #663F53 #53663F

tetradic

#3F5366 #663F66 #66523F #40663F

square

#3F5366 #663F66 #66523F #40663F

split-complementary

#3F5366 #663F40 #66663F

monochromatic

#10151A #283440 #3F5366 #56728C #7590AA

Accessibility & contrast

On white

7.95

#3F5366 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#3F5366 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F5366

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5366	#FFFFFF	#000000	##FFFFFF
##3F5366	1.00	7.95	2.64	7.95
#FFFFFF	7.95	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C5367

Deuteranopia (green-blind)

#474F66

Tritanopia (blue-blind)

#325759

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3f5366;
/* rgb */ color: rgb(63, 83, 102);
/* oklch */ color: oklch(43.3% 0.040 247.5);

Tailwind

colors: {
  custom: {
    50: '#758391',
    500: '#3f5366',
    950: '#000000',
  },
}

SCSS

$custom: #3f5366;
$custom-light: #758391;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5366",
  "rgb": {
    "r": 63,
    "g": 83,
    "b": 102
  },
  "hsl": {
    "h": 209.231,
    "s": 23.636,
    "l": 32.353
  },
  "oklch": {
    "l": 0.43341,
    "c": 0.04016,
    "h": 247.5
  },
  "luminance": 0.08203
}

Semantic roles & 50–950 ramp

primary

#3F5366

secondary

#95806B

accent

#9368C0

background

#F7F8F8

surface

#EDEFF0

border

#C8CACB

text

#080A0C

muted

#7B7C7D

Preview Lab

Preview with #3F5366

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

Preview Lab → · Contrast checker → · Palette generator →