#37555F#37555F
#37555F is a dark, muted cyan. Relative luminance 0.081; OKLCH L 43.0% C 0.039 H 220.9°. Best body text is #FFFFFF at 7.99:1 contrast (WCAG AA passes).
Color values
| HEX | #37555F |
|---|---|
| RGB | rgb(55, 85, 95) |
| HSL | hsl(195, 27%, 29%) |
| HSV | hsv(195, 42%, 37%) |
| CMYK | cmyk(42.1%, 10.5%, 0%, 62.7%) |
| CIE-LAB | lab(34.26, -8.18, -9.31) |
| CIE-LCH | lch(34.26, 12.40, 228.71°) |
| OKLab | oklab(43.01% -0.0296 -0.0256) |
| OKLCH | oklch(43.01% 0.039 220.9) |
| XYZ | xyz(6.8889, 8.1350, 12.0315) |
| Luminance | 0.0814 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Darkslategray
#2F4F4F
ΔE00 6.32
Charcoal
#36454F
ΔE00 6.91
Gunmetal (survey)
#536267
ΔE00 7.04
Slate
#516572
ΔE00 7.58
Dark Grey Blue
#29465B
ΔE00 7.77
Petrol
#005F6A
ΔE00 8.45
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#37555F #5F4137
analogous
#375F55 #37555F #37415F
triadic
#37555F #5F3755 #555F37
tetradic
#37555F #55375F #5F4137 #415F37
square
#37555F #55375F #5F4137 #415F37
split-complementary
#37555F #5F3741 #5F5537
monochromatic
#0B1113 #213238 #37555F #4D7886 #6998A8
Accessibility & contrast
On white
7.99
#37555F on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.63
#37555F on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #37555F
7.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##37555F | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##37555F | 1.00 | 7.99 | 2.63 | 7.99 |
| #FFFFFF | 7.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.63 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4F5360
Deuteranopia (green-blind)
#494F5F
Tritanopia (blue-blind)
#275858
Achromatopsia (no color)
#515151
Design tokens & code
CSS
--color: #37555f; /* rgb */ color: rgb(55, 85, 95); /* oklch */ color: oklch(43.0% 0.039 220.9);
Tailwind
colors: {
custom: {
50: '#70848c',
500: '#37555f',
950: '#000000',
},
}SCSS
$custom: #37555f; $custom-light: #70848c; $custom-dark: #000000;
JSON
{
"hex": "#37555f",
"rgb": {
"r": 55,
"g": 85,
"b": 95
},
"hsl": {
"h": 195,
"s": 26.667,
"l": 29.412
},
"oklch": {
"l": 0.43008,
"c": 0.03913,
"h": 220.9
},
"luminance": 0.08135
}Semantic roles & 50–950 ramp
primary
#37555F
secondary
#8F6E62
accent
#7C65C3
background
#F6F8F8
surface
#ECEFF0
border
#C7CACB
text
#070B0C
muted
#7A7C7D