#3F2D2F
Closest named color: Onyx (#343A40). oklch(31.9% 0.027 11.3), rgb(63, 45, 47).
Aa
White text reads best on this color (12.90:1).
About this color
#3F2D2F is a dark close to neutral grey. In OKLCH its lightness is 32%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.044 away. White text reads best on it, at 12.90:1.
| Hue family | Neutrals |
| Lightness | dark (32%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.62:1 |
| White text | 12.90:1 |
Values
| HEX | #3F2D2F |
| RGB | rgb(63, 45, 47) |
| HSL | hsl(353, 17%, 21%) |
| OKLCH | oklch(31.9% 0.027 11.3) |
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 #3F2D2F | 12.90:1 | AAA | Lc -102.3 | Preferred for body text |
| Black text on #3F2D2F | 1.62:1 | Fails | Lc 0.0 | Not readable |
| #3F2D2F text on white | 12.90:1 | AAA | Lc 99.1 | Preferred for body text |
| #3F2D2F text on black | 1.62:1 | 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
#F8F4F5
oklch(97.1% 0.004 360)
-
Step 100
100
#F0E7E8
oklch(93.5% 0.01 9.5)
-
Step 200
200
#E4D5D6
oklch(88.5% 0.017 12.8)
-
Step 300
300
#D4B9BB
oklch(80.9% 0.031 12.7)
-
Step 400
400
#BE9499
oklch(70.7% 0.051 10.5)
-
Step 500
500
#AD797F
oklch(63% 0.066 11.5)
-
Step 600
600
#986269
oklch(55.7% 0.071 11.1)
-
Step 700
700
#815157
oklch(49.1% 0.065 11.6)
-
Step 800
800
#694247
oklch(42.6% 0.055 11.3)
-
Step 900
900
#56383C
oklch(37.7% 0.043 10.6)
-
Step 950
950 (this color)
#3F2D2F
oklch(31.9% 0.027 11.3)
#3F2D2F 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) | #30302F | 0.029 |
| Deuteranopia (no green cones) | #34332F | 0.027 |
| Tritanopia (no blue cones) | #432C2E | 0.008 |
| Achromatopsia (no color) | #323232 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F2D2F
#3F2D2F
oklch(31.9% 0.027 11.3)
- #223736
#223736
oklch(31.9% 0.027 192.1)
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 #3F2D2F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.044
- Gunmetal #293241 ΔE 0.047
- Space Cadet #2B2D42 ΔE 0.049
- Charcoal Grey #3C4142 ΔE 0.062
- Jet #212529 ΔE 0.066
- Pakistan Green #283618 ΔE 0.070
- Dark Blue Grey #1F3B4D ΔE 0.071
- Chocolate Brown #411900 ΔE 0.073
Use #3F2D2F 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.