#43370B
Closest named color: Dark Olive (#373E02). oklch(34.1% 0.062 93.1), rgb(67, 55, 11).
Aa
White text reads best on this color (11.73:1).
About this color
#43370B is a dark, muted brown. In OKLCH its lightness is 34%, its chroma 0.062 and its hue 93°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.033 away. White text reads best on it, at 11.73:1.
| Hue family | Browns |
| Lightness | dark (34%) |
| Chroma | muted (0.062) |
| Temperature | warm |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.78:1 |
| White text | 11.73:1 |
Values
| HEX | #43370B |
| RGB | rgb(67, 55, 11) |
| HSL | hsl(47, 72%, 15%) |
| OKLCH | oklch(34.1% 0.062 93.1) |
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 #43370B | 11.73:1 | AAA | Lc -100.5 | Preferred for body text |
| Black text on #43370B | 1.78:1 | Fails | Lc 0.0 | Not readable |
| #43370B text on white | 11.73:1 | AAA | Lc 96.9 | Preferred for body text |
| #43370B text on black | 1.78:1 | 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
#F7F5F1
oklch(97.1% 0.006 84.6)
-
Step 100
100
#EDEAE0
oklch(93.7% 0.014 93)
-
Step 200
200
#DFD9C6
oklch(88.5% 0.026 92.4)
-
Step 300
300
#CBC09F
oklch(80.8% 0.046 91.8)
-
Step 400
400
#B0A06A
oklch(70.7% 0.075 93.5)
-
Step 500
500
#9D8841
oklch(63.1% 0.094 93.1)
-
Step 600
600
#88711D
oklch(55.5% 0.103 92.8)
-
Step 700
700
#735F0D
oklch(49.1% 0.096 93.7)
-
Step 800
800
#5E4D10
oklch(42.6% 0.079 92.4)
-
Step 900
900 (this color)
#43370B
oklch(34.1% 0.062 93.1)
-
Step 950
950
#2D260E
oklch(27% 0.04 93.3)
#43370B 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) | #3E3605 | 0.012 |
| Deuteranopia (no green cones) | #41390E | 0.007 |
| Tritanopia (no blue cones) | #49322E | 0.056 |
| Achromatopsia (no color) | #383838 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43370B
#43370B
oklch(34.1% 0.062 93.1)
- #2E3558
#2E3558
oklch(34% 0.062 274.1)
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 #43370B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.033
- Pakistan Green #283618 ΔE 0.047
- Charcoal Grey #3C4142 ΔE 0.072
- Onyx #343A40 ΔE 0.074
- Mud Brown #60460F ΔE 0.075
- Forrest Green #154406 ΔE 0.075
- Hunter Green #0B4008 ΔE 0.077
- Evergreen #05472A ΔE 0.078
Use #43370B 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.