#3F2F2F
Closest named color: Onyx (#343A40). oklch(32.3% 0.024 18.4), rgb(63, 47, 47).
Aa
White text reads best on this color (12.65:1).
About this color
#3F2F2F is a dark close to neutral grey. In OKLCH its lightness is 32%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.040 away. White text reads best on it, at 12.65:1.
| Hue family | Neutrals |
| Lightness | dark (32%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.65:1 |
| White text | 12.65:1 |
Values
| HEX | #3F2F2F |
| RGB | rgb(63, 47, 47) |
| HSL | hsl(0, 15%, 22%) |
| OKLCH | oklch(32.3% 0.024 18.4) |
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 #3F2F2F | 12.65:1 | AAA | Lc -102.0 | Preferred for body text |
| Black text on #3F2F2F | 1.65:1 | Fails | Lc 0.0 | Not readable |
| #3F2F2F text on white | 12.65:1 | AAA | Lc 98.7 | Preferred for body text |
| #3F2F2F text on black | 1.65:1 | 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 950.
-
Step 50
50
#F8F4F4
oklch(97% 0.004 17.2)
-
Step 100
100
#EFE8E8
oklch(93.6% 0.008 17.3)
-
Step 200
200
#E3D5D5
oklch(88.4% 0.016 17.5)
-
Step 300
300
#D2BABA
oklch(80.9% 0.027 17.7)
-
Step 400
400
#BB9696
oklch(70.7% 0.045 18.3)
-
Step 500
500
#A97C7C
oklch(63.1% 0.056 18.8)
-
Step 600
600
#946565
oklch(55.6% 0.061 19.2)
-
Step 700
700
#7E5354
oklch(49% 0.058 17.8)
-
Step 800
800
#674445
oklch(42.7% 0.049 17.4)
-
Step 900
900
#543A3A
oklch(37.8% 0.037 18.9)
-
Step 950
950 (this color)
#3F2F2F
oklch(32.3% 0.024 18.4)
#3F2F2F 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) | #32312F | 0.024 |
| Deuteranopia (no green cones) | #36342F | 0.022 |
| Tritanopia (no blue cones) | #422D2F | 0.008 |
| Achromatopsia (no color) | #333333 | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F2F2F
#3F2F2F
oklch(32.3% 0.024 18.4)
- #253838
#253838
oklch(32.4% 0.024 196)
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 #3F2F2F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.040
- Gunmetal #293241 ΔE 0.046
- Space Cadet #2B2D42 ΔE 0.051
- Charcoal Grey #3C4142 ΔE 0.056
- Pakistan Green #283618 ΔE 0.066
- Dark Blue Grey #1F3B4D ΔE 0.068
- Jet #212529 ΔE 0.068
- Chocolate Brown #411900 ΔE 0.076
Use #3F2F2F 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.