#3F4E51#3F4E51
#3F4E51 is a dark, near-neutral cyan. Relative luminance 0.071; OKLCH L 41.2% C 0.020 H 211.1°. Best body text is #FFFFFF at 8.68:1 contrast (WCAG AA passes).
Color values
| HEX | #3F4E51 |
|---|---|
| RGB | rgb(63, 78, 81) |
| HSL | hsl(190, 13%, 28%) |
| HSV | hsv(190, 22%, 32%) |
| CMYK | cmyk(22.2%, 3.7%, 0%, 68.2%) |
| CIE-LAB | lab(32.03, -5.12, -3.73) |
| CIE-LCH | lch(32.03, 6.34, 216.08°) |
| OKLab | oklab(41.21% -0.0168 -0.0101) |
| OKLCH | oklch(41.21% 0.02 211.1) |
| XYZ | xyz(6.2591, 7.0994, 8.8235) |
| Luminance | 0.0710 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Charcoal
#36454F
ΔE00 5.08
Charcoal Grey
#3C4142
ΔE00 5.77
Darkslategray
#2F4F4F
ΔE00 6.40
Gunmetal (survey)
#536267
ΔE00 7.18
Charcoal (survey)
#343837
ΔE00 8.34
Onyx
#353839
ΔE00 8.53
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3F4E51 #51423F
analogous
#3F514B #3F4E51 #3F4551
triadic
#3F4E51 #513F4E #4E513F
tetradic
#3F4E51 #4B3F51 #51423F #45513F
square
#3F4E51 #4B3F51 #51423F #45513F
split-complementary
#3F4E51 #513F45 #514B3F
monochromatic
#0D1111 #242D2F #3F4E51 #5A6F73 #768F94
Accessibility & contrast
On white
8.68
#3F4E51 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.42
#3F4E51 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #3F4E51
8.68:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3F4E51 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3F4E51 | 1.00 | 8.68 | 2.42 | 8.68 |
| #FFFFFF | 8.68 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.42 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.68 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4B4D51
Deuteranopia (green-blind)
#484A51
Tritanopia (blue-blind)
#3A4F4F
Achromatopsia (no color)
#4B4B4B
Design tokens & code
CSS
--color: #3f4e51; /* rgb */ color: rgb(63, 78, 81); /* oklch */ color: oklch(41.2% 0.020 211.1);
Tailwind
colors: {
custom: {
50: '#747f81',
500: '#3f4e51',
950: '#000000',
},
}SCSS
$custom: #3f4e51; $custom-light: #747f81; $custom-dark: #000000;
JSON
{
"hex": "#3f4e51",
"rgb": {
"r": 63,
"g": 78,
"b": 81
},
"hsl": {
"h": 190,
"s": 12.5,
"l": 28.235
},
"oklch": {
"l": 0.41211,
"c": 0.0196,
"h": 211.1
},
"luminance": 0.071
}Semantic roles & 50–950 ramp
primary
#3F4E51
secondary
#806F6C
accent
#7E72B5
background
#F7F7F7
surface
#EDEEEE
border
#C8C9C9
text
#080A0A
muted
#7B7C7C