#43371B
Closest named color: Dark Olive (#373E02). oklch(34.3% 0.046 86.7), rgb(67, 55, 27).
Aa
White text reads best on this color (11.66:1).
About this color
#43371B is a dark, muted brown. In OKLCH its lightness is 34%, its chroma 0.046 and its hue 87°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.044 away. White text reads best on it, at 11.66:1.
| Hue family | Browns |
| Lightness | dark (34%) |
| Chroma | muted (0.046) |
| Temperature | warm |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.80:1 |
| White text | 11.66:1 |
Values
| HEX | #43371B |
| RGB | rgb(67, 55, 27) |
| HSL | hsl(42, 43%, 18%) |
| OKLCH | oklch(34.3% 0.046 86.7) |
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 #43371B | 11.66:1 | AAA | Lc -100.4 | Preferred for body text |
| Black text on #43371B | 1.80:1 | Fails | Lc 0.0 | Not readable |
| #43371B text on white | 11.66:1 | AAA | Lc 96.8 | Preferred for body text |
| #43371B text on black | 1.80:1 | 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
#F7F5F2
oklch(97.1% 0.005 78.3)
-
Step 100
100
#EDE9E2
oklch(93.5% 0.01 81.8)
-
Step 200
200
#DFD9CB
oklch(88.6% 0.02 87.5)
-
Step 300
300
#CAC0A8
oklch(81% 0.035 88.1)
-
Step 400
400
#B09F79
oklch(70.8% 0.056 86.7)
-
Step 500
500
#9C8757
oklch(63.1% 0.07 86.8)
-
Step 600
600
#87703B
oklch(55.5% 0.077 86.4)
-
Step 700
700
#725E2D
oklch(49.1% 0.072 87.4)
-
Step 800
800
#5D4D27
oklch(42.7% 0.059 87)
-
Step 900
900 (this color)
#43371B
oklch(34.3% 0.046 86.7)
-
Step 950
950
#2D2615
oklch(27.1% 0.03 88)
#43371B 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) | #3D3719 | 0.012 |
| Deuteranopia (no green cones) | #403A1C | 0.010 |
| Tritanopia (no blue cones) | #483330 | 0.040 |
| Achromatopsia (no color) | #383838 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43371B
#43371B
oklch(34.3% 0.046 86.7)
- #2E3851
#2E3851
oklch(34.3% 0.046 267.2)
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 #43371B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.044
- Pakistan Green #283618 ΔE 0.048
- Charcoal Grey #3C4142 ΔE 0.058
- Onyx #343A40 ΔE 0.059
- Mud Brown #60460F ΔE 0.076
- Evergreen #05472A ΔE 0.079
- Gunmetal #293241 ΔE 0.080
- Pine Green #0A481E ΔE 0.083
Use #43371B 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.