#3F450D
Closest named color: Dark Olive (#373E02). oklch(37.3% 0.076 115.5), rgb(63, 69, 13).
Aa
White text reads best on this color (10.15:1).
About this color
#3F450D is a dark, moderately saturated brown. In OKLCH its lightness is 37%, its chroma 0.076 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 0.028 away. White text reads best on it, at 10.15:1.
| Hue family | Browns |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.076) |
| Temperature | in between |
| Nearest name | Dark Olive (#373E02) |
| Black text | 2.06:1 |
| White text | 10.15:1 |
Values
| HEX | #3F450D |
| RGB | rgb(63, 69, 13) |
| HSL | hsl(66, 68%, 16%) |
| OKLCH | oklch(37.3% 0.076 115.5) |
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 #3F450D | 10.15:1 | AAA | Lc -97.6 | Preferred for body text |
| Black text on #3F450D | 2.06:1 | Fails | Lc 10.4 | Not readable |
| #3F450D text on white | 10.15:1 | AAA | Lc 93.5 | Preferred for body text |
| #3F450D text on black | 2.06:1 | Fails | Lc -9.0 | 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
#F5F6F0
oklch(97.1% 0.008 114.2)
-
Step 100
100
#E9EBDF
oklch(93.5% 0.016 114.4)
-
Step 200
200
#D8DCC5
oklch(88.5% 0.031 115)
-
Step 300
300
#BEC69C
oklch(80.9% 0.057 116.5)
-
Step 400
400
#9EA864
oklch(70.8% 0.092 115.6)
-
Step 500
500
#879236
oklch(63.2% 0.117 115.6)
-
Step 600
600
#717B00
oklch(55.5% 0.126 115.3)
-
Step 700
700
#5F6800
oklch(49.3% 0.112 115.5)
-
Step 800
800
#4D5500
oklch(42.8% 0.098 115.9)
-
Step 900
900 (this color)
#3F450D
oklch(37.3% 0.076 115.5)
-
Step 950
950
#25290B
oklch(26.9% 0.048 116.1)
#3F450D 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) | #4A4104 | 0.020 |
| Deuteranopia (no green cones) | #4A4212 | 0.022 |
| Tritanopia (no blue cones) | #44413A | 0.066 |
| Achromatopsia (no color) | #414141 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F450D
#3F450D
oklch(37.3% 0.076 115.5)
- #443764
#443764
oklch(37.2% 0.076 295.8)
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 #3F450D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.028
- Navy Green #35530A ΔE 0.047
- Green Brown #544E03 ΔE 0.048
- Pine Green #0A481E ΔE 0.055
- Forrest Green #154406 ΔE 0.055
- Mud Brown #60460F ΔE 0.060
- Evergreen #05472A ΔE 0.060
- British Racing Green #05480D ΔE 0.060
Use #3F450D 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.