#3F451D
Closest named color: Dark Olive (#373E02). oklch(37.5% 0.061 116.5), rgb(63, 69, 29).
Aa
White text reads best on this color (10.09:1).
About this color
#3F451D is a dark, muted brown. In OKLCH its lightness is 37%, its chroma 0.061 and its hue 116°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.034 away. White text reads best on it, at 10.09:1.
| Hue family | Browns |
| Lightness | dark (37%) |
| Chroma | muted (0.061) |
| Temperature | in between |
| Nearest name | Dark Olive (#373E02) |
| Black text | 2.08:1 |
| White text | 10.09:1 |
Values
| HEX | #3F451D |
| RGB | rgb(63, 69, 29) |
| HSL | hsl(69, 41%, 19%) |
| OKLCH | oklch(37.5% 0.061 116.5) |
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 #3F451D | 10.09:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #3F451D | 2.08:1 | Fails | Lc 10.5 | Not readable |
| #3F451D text on white | 10.09:1 | AAA | Lc 93.4 | Preferred for body text |
| #3F451D 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
#F5F6F1
oklch(97.1% 0.007 115.7)
-
Step 100
100
#E9EBE1
oklch(93.6% 0.013 115.8)
-
Step 200
200
#D8DCC9
oklch(88.6% 0.026 116.6)
-
Step 300
300
#BEC5A4
oklch(80.9% 0.046 117.2)
-
Step 400
400
#9DA772
oklch(70.7% 0.074 117)
-
Step 500
500
#86914C
oklch(63.2% 0.094 116.6)
-
Step 600
600
#707B2E
oklch(55.7% 0.102 116.7)
-
Step 700
700
#5E6720
oklch(49.1% 0.094 116.2)
-
Step 800
800
#4C541D
oklch(42.6% 0.078 116.8)
-
Step 900
900 (this color)
#3F451D
oklch(37.5% 0.061 116.5)
-
Step 950
950
#252912
oklch(27% 0.039 117.2)
#3F451D 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) | #4A4219 | 0.019 |
| Deuteranopia (no green cones) | #49421F | 0.020 |
| Tritanopia (no blue cones) | #43413C | 0.053 |
| Achromatopsia (no color) | #424242 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F451D
#3F451D
oklch(37.5% 0.061 116.5)
- #443A5D
#443A5D
oklch(37.5% 0.06 296.5)
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 #3F451D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.034
- Green Brown #544E03 ΔE 0.052
- Navy Green #35530A ΔE 0.054
- Pine Green #0A481E ΔE 0.057
- Evergreen #05472A ΔE 0.057
- Mud Brown #60460F ΔE 0.058
- Charcoal Grey #3C4142 ΔE 0.062
- Forrest Green #154406 ΔE 0.062
Use #3F451D 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.