#40505C#40505C
#40505C is a dark, muted cyan. Relative luminance 0.076; OKLCH L 42.2% C 0.028 H 240.7°. Best body text is #FFFFFF at 8.33:1 contrast (WCAG AA passes).
Color values
| HEX | #40505C |
|---|---|
| RGB | rgb(64, 80, 92) |
| HSL | hsl(206, 18%, 31%) |
| HSV | hsv(206, 30%, 36%) |
| CMYK | cmyk(30.4%, 13%, 0%, 63.9%) |
| CIE-LAB | lab(33.13, -3.06, -9.07) |
| CIE-LCH | lch(33.13, 9.57, 251.32°) |
| OKLab | oklab(42.23% -0.0139 -0.0248) |
| OKLCH | oklch(42.23% 0.028 240.7) |
| XYZ | xyz(6.9142, 7.5997, 11.2257) |
| Luminance | 0.0760 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Charcoal
#36454F
ΔE00 3.80
Dark Grey Blue
#29465B
ΔE00 5.67
Dark Slate Blue
#214761
ΔE00 7.13
Gunmetal (survey)
#536267
ΔE00 7.32
Slate
#516572
ΔE00 7.34
Charcoal Grey
#3C4142
ΔE00 7.84
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#40505C #5C4C40
analogous
#405C5A #40505C #40425C
triadic
#40505C #5C4050 #505C40
tetradic
#40505C #5A405C #5C4C40 #425C40
square
#40505C #5A405C #5C4C40 #425C40
split-complementary
#40505C #5C4042 #5C5A40
monochromatic
#0E1114 #273138 #40505C #596F80 #768EA0
Accessibility & contrast
On white
8.33
#40505C on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.52
#40505C on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #40505C
8.33:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##40505C | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##40505C | 1.00 | 8.33 | 2.52 | 8.33 |
| #FFFFFF | 8.33 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.52 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.33 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4B505D
Deuteranopia (green-blind)
#474D5C
Tritanopia (blue-blind)
#385354
Achromatopsia (no color)
#4E4E4E
Design tokens & code
CSS
--color: #40505c; /* rgb */ color: rgb(64, 80, 92); /* oklch */ color: oklch(42.2% 0.028 240.7);
Tailwind
colors: {
custom: {
50: '#75818a',
500: '#40505c',
950: '#000000',
},
}SCSS
$custom: #40505c; $custom-light: #75818a; $custom-dark: #000000;
JSON
{
"hex": "#40505c",
"rgb": {
"r": 64,
"g": 80,
"b": 92
},
"hsl": {
"h": 205.714,
"s": 17.949,
"l": 30.588
},
"oklch": {
"l": 0.42232,
"c": 0.0284,
"h": 240.7
},
"luminance": 0.076
}Semantic roles & 50–950 ramp
primary
#40505C
secondary
#8B7A6C
accent
#8E6DBB
background
#F7F7F8
surface
#EDEEF0
border
#C8C9CB
text
#080A0B
muted
#7B7C7C