#2B313B#2B313B
#2B313B is a dark, near-neutral blue. Relative luminance 0.030; OKLCH L 31.2% C 0.020 H 260.6°. Best body text is #FFFFFF at 13.08:1 contrast (WCAG AA passes).
Color values
| HEX | #2B313B |
|---|---|
| RGB | rgb(43, 49, 59) |
| HSL | hsl(218, 16%, 20%) |
| HSV | hsv(218, 27%, 23%) |
| CMYK | cmyk(27.1%, 16.9%, 0%, 76.9%) |
| CIE-LAB | lab(20.15, 0.14, -7.18) |
| CIE-LCH | lch(20.15, 7.18, 271.12°) |
| OKLab | oklab(31.16% -0.0032 -0.0196) |
| OKLCH | oklch(31.16% 0.02 260.6) |
| XYZ | xyz(2.8838, 3.0259, 4.5689) |
| Luminance | 0.0303 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Gunmetal
#2A3439
ΔE00 4.56
Dark
#1B2431
ΔE00 4.59
Onyx
#353839
ΔE00 5.86
Dark Grey
#363737
ΔE00 6.40
Charcoal (survey)
#343837
ΔE00 7.18
Charcoal
#36454F
ΔE00 7.39
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2B313B #3B352B
analogous
#2B393B #2B313B #2D2B3B
triadic
#2B313B #3B2B31 #313B2B
tetradic
#2B313B #3B2B39 #3B352B #2B3B2D
square
#2B313B #3B2B39 #3B352B #2B3B2D
split-complementary
#2B313B #3B2D2B #393B2B
monochromatic
#0D0F12 #111418 #2B313B #454E5E #5F6C82
Accessibility & contrast
On white
13.08
#2B313B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.61
#2B313B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2B313B
13.08:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2B313B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2B313B | 1.00 | 13.08 | 1.61 | 13.08 |
| #FFFFFF | 13.08 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.61 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 13.08 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#2E313B
Deuteranopia (green-blind)
#2C303B
Tritanopia (blue-blind)
#273334
Achromatopsia (no color)
#313131
Design tokens & code
CSS
--color: #2b313b; /* rgb */ color: rgb(43, 49, 59); /* oklch */ color: oklch(31.2% 0.020 260.6);
Tailwind
colors: {
custom: {
50: '#646970',
500: '#2b313b',
950: '#000000',
},
}SCSS
$custom: #2b313b; $custom-light: #646970; $custom-dark: #000000;
JSON
{
"hex": "#2b313b",
"rgb": {
"r": 43,
"g": 49,
"b": 59
},
"hsl": {
"h": 217.5,
"s": 15.686,
"l": 20
},
"oklch": {
"l": 0.31161,
"c": 0.01985,
"h": 260.6
},
"luminance": 0.03026
}Semantic roles & 50–950 ramp
primary
#2B313B
secondary
#6C6456
accent
#9D6FB8
background
#F6F6F6
surface
#EBEBEC
border
#C6C6C7
text
#050607
muted
#7A7A7A