#2F3E31
Closest named color: Onyx (#343A40). oklch(34.6% 0.03 148.6), rgb(47, 62, 49).
Aa
White text reads best on this color (11.32:1).
About this color
#2F3E31 is a dark close to neutral grey. In OKLCH its lightness is 35%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.035 away. White text reads best on it, at 11.32:1.
| Hue family | Neutrals |
| Lightness | dark (35%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.85:1 |
| White text | 11.32:1 |
Values
| HEX | #2F3E31 |
| RGB | rgb(47, 62, 49) |
| HSL | hsl(128, 14%, 21%) |
| OKLCH | oklch(34.6% 0.03 148.6) |
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 #2F3E31 | 11.32:1 | AAA | Lc -99.9 | Preferred for body text |
| Black text on #2F3E31 | 1.85:1 | Fails | Lc 7.8 | Not readable |
| #2F3E31 text on white | 11.32:1 | AAA | Lc 96.1 | Preferred for body text |
| #2F3E31 text on black | 1.85:1 | 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
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E7EBE7
oklch(93.6% 0.007 145.5)
-
Step 200
200
#D4DBD5
oklch(88.4% 0.011 149.8)
-
Step 300
300
#B7C5B9
oklch(80.9% 0.023 149.6)
-
Step 400
400
#92A794
oklch(70.7% 0.036 147.9)
-
Step 500
500
#77927A
oklch(63.2% 0.047 148.1)
-
Step 600
600
#607C63
oklch(55.7% 0.05 147.7)
-
Step 700
700
#4F6852
oklch(49% 0.046 148.1)
-
Step 800
800
#415543
oklch(42.7% 0.038 147.5)
-
Step 900
900 (this color)
#2F3E31
oklch(34.6% 0.03 148.6)
-
Step 950
950
#202921
oklch(26.9% 0.019 148.1)
#2F3E31 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) | #3E3B30 | 0.025 |
| Deuteranopia (no green cones) | #3C3A32 | 0.024 |
| Tritanopia (no blue cones) | #2D3D3A | 0.017 |
| Achromatopsia (no color) | #3A3A3A | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F3E31
#2F3E31
oklch(34.6% 0.03 148.6)
- #423441
#423441
oklch(34.5% 0.029 328.5)
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 #2F3E31, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.035
- Charcoal Grey #3C4142 ΔE 0.037
- Pakistan Green #283618 ΔE 0.043
- Evergreen #05472A ΔE 0.051
- Dark Olive #373E02 ΔE 0.055
- Charcoal #264653 ΔE 0.056
- Dark Blue Grey #1F3B4D ΔE 0.056
- Gunmetal #293241 ΔE 0.058
Use #2F3E31 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.