#333F2F
Closest named color: Charcoal Grey (#3C4142). oklch(35.2% 0.031 137.9), rgb(51, 63, 47).
Aa
White text reads best on this color (11.09:1).
About this color
#333F2F is a dark, muted green. In OKLCH its lightness is 35%, its chroma 0.031 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.036 away. White text reads best on it, at 11.09:1.
| Hue family | Greens |
| Lightness | dark (35%) |
| Chroma | muted (0.031) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.89:1 |
| White text | 11.09:1 |
Values
| HEX | #333F2F |
| RGB | rgb(51, 63, 47) |
| HSL | hsl(105, 15%, 22%) |
| OKLCH | oklch(35.2% 0.031 137.9) |
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 #333F2F | 11.09:1 | AAA | Lc -99.5 | Preferred for body text |
| Black text on #333F2F | 1.89:1 | Fails | Lc 8.2 | Not readable |
| #333F2F text on white | 11.09:1 | AAA | Lc 95.7 | Preferred for body text |
| #333F2F text on black | 1.89:1 | 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
#E8EBE7
oklch(93.7% 0.006 137.8)
-
Step 200
200
#D5DBD3
oklch(88.5% 0.013 137.8)
-
Step 300
300
#B9C4B6
oklch(80.8% 0.023 139)
-
Step 400
400
#95A790
oklch(70.8% 0.039 138.9)
-
Step 500
500
#7C9174
oklch(63.2% 0.049 137.1)
-
Step 600
600
#647B5D
oklch(55.6% 0.053 138.5)
-
Step 700
700
#53684C
oklch(49.2% 0.05 138)
-
Step 800
800
#44543F
oklch(42.6% 0.039 138.3)
-
Step 900
900 (this color)
#333F2F
oklch(35.2% 0.031 137.9)
-
Step 950
950
#22291F
oklch(27.1% 0.021 136.3)
#333F2F 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) | #403C2E | 0.022 |
| Deuteranopia (no green cones) | #3E3B30 | 0.022 |
| Tritanopia (no blue cones) | #333E3B | 0.022 |
| Achromatopsia (no color) | #3C3C3C | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #333F2F
#333F2F
oklch(35.2% 0.031 137.9)
- #423646
#423646
oklch(35.2% 0.032 317.6)
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 #333F2F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.036
- Onyx #343A40 ΔE 0.039
- Pakistan Green #283618 ΔE 0.046
- Dark Olive #373E02 ΔE 0.050
- Evergreen #05472A ΔE 0.051
- Charcoal #264653 ΔE 0.058
- Dark Slate Gray #2F4F4F ΔE 0.061
- Pine Green #0A481E ΔE 0.062
Use #333F2F 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.