#2F3A34
Closest named color: Onyx (#343A40). oklch(33.6% 0.018 161.4), rgb(47, 58, 52).
Aa
White text reads best on this color (11.82:1).
About this color
#2F3A34 is a dark close to neutral grey. In OKLCH its lightness is 34%, its chroma 0.018. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.024 away. White text reads best on it, at 11.82:1.
| Hue family | Neutrals |
| Lightness | dark (34%) |
| Chroma | close to neutral grey (0.018) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.77:1 |
| White text | 11.82:1 |
Values
| HEX | #2F3A34 |
| RGB | rgb(47, 58, 52) |
| HSL | hsl(147, 10%, 21%) |
| OKLCH | oklch(33.6% 0.018 161.4) |
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 #2F3A34 | 11.82:1 | AAA | Lc -100.7 | Preferred for body text |
| Black text on #2F3A34 | 1.77:1 | Fails | Lc 0.0 | Not readable |
| #2F3A34 text on white | 11.82:1 | AAA | Lc 97.1 | Preferred for body text |
| #2F3A34 text on black | 1.77:1 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E8EBE9
oklch(93.7% 0.004 157.2)
-
Step 200
200
#D5DBD7
oklch(88.6% 0.008 157.1)
-
Step 300
300
#B9C3BE
oklch(80.8% 0.013 164.7)
-
Step 400
400
#95A59C
oklch(70.7% 0.022 161.2)
-
Step 500
500
#7B8F84
oklch(63.1% 0.028 161.5)
-
Step 600
600
#64796E
oklch(55.6% 0.03 162.5)
-
Step 700
700
#53665C
oklch(49.1% 0.028 162.3)
-
Step 800
800
#44534B
oklch(42.7% 0.023 162)
-
Step 900
900 (this color)
#2F3A34
oklch(33.6% 0.018 161.4)
-
Step 950
950
#222825
oklch(27% 0.01 164.1)
#2F3A34 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) | #3A3834 | 0.019 |
| Deuteranopia (no green cones) | #383734 | 0.017 |
| Tritanopia (no blue cones) | #2D3A38 | 0.007 |
| Achromatopsia (no color) | #373737 | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F3A34
#2F3A34
oklch(33.6% 0.018 161.4)
- #3E333A
#3E333A
oklch(33.6% 0.02 339.8)
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 #2F3A34, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.024
- Charcoal Grey #3C4142 ΔE 0.038
- Gunmetal #293241 ΔE 0.043
- Pakistan Green #283618 ΔE 0.046
- Dark Blue Grey #1F3B4D ΔE 0.046
- Midnight Green #073B4C ΔE 0.054
- Charcoal #264653 ΔE 0.056
- Space Cadet #2B2D42 ΔE 0.058
Use #2F3A34 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.