#3F451F
Closest named color: Dark Olive (#373E02). oklch(37.5% 0.058 116.7), rgb(63, 69, 31).
Aa
White text reads best on this color (10.08:1).
About this color
#3F451F is a dark, muted brown. In OKLCH its lightness is 38%, its chroma 0.058 and its hue 117°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.035 away. White text reads best on it, at 10.08:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | muted (0.058) |
| Temperature | in between |
| Nearest name | Dark Olive (#373E02) |
| Black text | 2.08:1 |
| White text | 10.08:1 |
Values
| HEX | #3F451F |
| RGB | rgb(63, 69, 31) |
| HSL | hsl(69, 38%, 20%) |
| OKLCH | oklch(37.5% 0.058 116.7) |
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 #3F451F | 10.08:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #3F451F | 2.08:1 | Fails | Lc 10.6 | Not readable |
| #3F451F text on white | 10.08:1 | AAA | Lc 93.4 | Preferred for body text |
| #3F451F text on black | 2.08:1 | Fails | Lc -9.1 | 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
#F5F6F2
oklch(97.1% 0.005 117.9)
-
Step 100
100
#E9EBE2
oklch(93.6% 0.012 116.8)
-
Step 200
200
#D8DBCA
oklch(88.4% 0.023 115)
-
Step 300
300
#BEC5A5
oklch(80.9% 0.044 117.4)
-
Step 400
400
#9DA774
oklch(70.7% 0.071 117.3)
-
Step 500
500
#86914F
oklch(63.2% 0.091 116.8)
-
Step 600
600
#707A32
oklch(55.5% 0.097 116.3)
-
Step 700
700
#5E6725
oklch(49.1% 0.09 116.4)
-
Step 800
800
#4C5420
oklch(42.6% 0.075 117)
-
Step 900
900 (this color)
#3F451F
oklch(37.5% 0.058 116.7)
-
Step 950
950
#252913
oklch(27% 0.038 117.4)
#3F451F 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) | #49421C | 0.018 |
| Deuteranopia (no green cones) | #494221 | 0.020 |
| Tritanopia (no blue cones) | #43413C | 0.051 |
| Achromatopsia (no color) | #424242 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F451F
#3F451F
oklch(37.5% 0.058 116.7)
- #443A5C
#443A5C
oklch(37.4% 0.058 297)
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 #3F451F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.035
- Green Brown #544E03 ΔE 0.053
- Navy Green #35530A ΔE 0.056
- Evergreen #05472A ΔE 0.057
- Pine Green #0A481E ΔE 0.057
- Mud Brown #60460F ΔE 0.058
- Charcoal Grey #3C4142 ΔE 0.059
- Forrest Green #154406 ΔE 0.063
Use #3F451F 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.