#3F3D30
Closest named color: Charcoal Grey (#3C4142). oklch(35.8% 0.022 100.1), rgb(63, 61, 48).
Aa
White text reads best on this color (10.92:1).
About this color
#3F3D30 is a dark close to neutral grey. In OKLCH its lightness is 36%, its chroma 0.022. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.028 away. White text reads best on it, at 10.92:1.
| Hue family | Neutrals |
| Lightness | dark (36%) |
| Chroma | close to neutral grey (0.022) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.92:1 |
| White text | 10.92:1 |
Values
| HEX | #3F3D30 |
| RGB | rgb(63, 61, 48) |
| HSL | hsl(52, 14%, 22%) |
| OKLCH | oklch(35.8% 0.022 100.1) |
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 #3F3D30 | 10.92:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #3F3D30 | 1.92:1 | Fails | Lc 8.6 | Not readable |
| #3F3D30 text on white | 10.92:1 | AAA | Lc 95.3 | Preferred for body text |
| #3F3D30 text on black | 1.92:1 | Fails | Lc -7.3 | 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
#F6F5F4
oklch(97.1% 0.002 67.8)
-
Step 100
100
#EAEAE6
oklch(93.6% 0.005 106.5)
-
Step 200
200
#DAD9D3
oklch(88.4% 0.008 98.9)
-
Step 300
300
#C3C1B5
oklch(80.9% 0.017 99)
-
Step 400
400
#A4A18F
oklch(70.6% 0.026 99.3)
-
Step 500
500
#8E8A73
oklch(63% 0.034 99.1)
-
Step 600
600
#78745C
oklch(55.6% 0.036 99.6)
-
Step 700
700
#65614C
oklch(49% 0.032 98.5)
-
Step 800
800
#52503E
oklch(42.8% 0.029 102.2)
-
Step 900
900 (this color)
#3F3D30
oklch(35.8% 0.022 100.1)
-
Step 950
950
#28271F
oklch(27.1% 0.014 101.4)
#3F3D30 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) | #403C2F | 0.003 |
| Deuteranopia (no green cones) | #403D30 | 0.002 |
| Tritanopia (no blue cones) | #413B39 | 0.019 |
| Achromatopsia (no color) | #3D3D3D | 0.022 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F3D30
#3F3D30
oklch(35.8% 0.022 100.1)
- #3A3B48
#3A3B48
oklch(35.7% 0.022 281.7)
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 #3F3D30, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.028
- Onyx #343A40 ΔE 0.036
- Pakistan Green #283618 ΔE 0.058
- Dark Olive #373E02 ΔE 0.059
- Charcoal #264653 ΔE 0.062
- Dark Slate Gray #2F4F4F ΔE 0.064
- Gunmetal #293241 ΔE 0.066
- Dark Blue Grey #1F3B4D ΔE 0.067
Use #3F3D30 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.