#3A313F
Closest named color: Gunmetal (#293241). oklch(32.8% 0.027 313.5), rgb(58, 49, 63).
Aa
White text reads best on this color (12.41:1).
About this color
#3A313F is a dark close to neutral grey. In OKLCH its lightness is 33%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Gunmetal (#293241), ΔE 0.029 away. White text reads best on it, at 12.41:1.
| Hue family | Neutrals |
| Lightness | dark (33%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.69:1 |
| White text | 12.41:1 |
Values
| HEX | #3A313F |
| RGB | rgb(58, 49, 63) |
| HSL | hsl(279, 13%, 22%) |
| OKLCH | oklch(32.8% 0.027 313.5) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #3A313F | 12.41:1 | AAA | Lc -101.7 | Preferred for body text |
| Black text on #3A313F | 1.69:1 | Fails | Lc 0.0 | Not readable |
| #3A313F text on white | 12.41:1 | AAA | Lc 98.3 | Preferred for body text |
| #3A313F text on black | 1.69:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.
-
Step 50
50
#F6F5F7
oklch(97.1% 0.003 308.4)
-
Step 100
100
#EBE9ED
oklch(93.7% 0.006 308.4)
-
Step 200
200
#DCD7DE
oklch(88.5% 0.011 316.5)
-
Step 300
300
#C5BDCA
oklch(80.9% 0.02 312.8)
-
Step 400
400
#A89BAF
oklch(70.7% 0.032 314)
-
Step 500
500
#93829C
oklch(63.1% 0.043 314)
-
Step 600
600
#7D6C86
oklch(55.6% 0.044 313.9)
-
Step 700
700
#695A72
oklch(49.1% 0.042 312.7)
-
Step 800
800
#564A5D
oklch(42.8% 0.034 313)
-
Step 900
900 (this color)
#3A313F
oklch(32.8% 0.027 313.5)
-
Step 950
950
#29242C
oklch(26.9% 0.016 312.9)
#3A313F with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #2F3440 | 0.020 |
| Deuteranopia (no green cones) | #31343F | 0.018 |
| Tritanopia (no blue cones) | #3A3336 | 0.019 |
| Achromatopsia (no color) | #343434 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A313F
#3A313F
oklch(32.8% 0.027 313.5)
- #2F382A
#2F382A
oklch(32.8% 0.027 134.5)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #3A313F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.029
- Onyx #343A40 ΔE 0.030
- Space Cadet #2B2D42 ΔE 0.032
- Dark Blue Grey #1F3B4D ΔE 0.049
- Charcoal Grey #3C4142 ΔE 0.052
- Prussian Blue #1D3557 ΔE 0.057
- Midnight Green #073B4C ΔE 0.064
- Oxford Blue #1B263B ΔE 0.068
Use #3A313F in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.