#40401E
Closest named color: Dark Olive (#373E02). oklch(36.3% 0.052 108.7), rgb(64, 64, 30).
Aa
White text reads best on this color (10.65:1).
About this color
#40401E is a dark, muted brown. In OKLCH its lightness is 36%, its chroma 0.052 and its hue 109°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.032 away. White text reads best on it, at 10.65:1.
| Hue family | Browns |
| Lightness | dark (36%) |
| Chroma | muted (0.052) |
| Temperature | warm |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.97:1 |
| White text | 10.65:1 |
Values
| HEX | #40401E |
| RGB | rgb(64, 64, 30) |
| HSL | hsl(60, 36%, 18%) |
| OKLCH | oklch(36.3% 0.052 108.7) |
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 #40401E | 10.65:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #40401E | 1.97:1 | Fails | Lc 9.2 | Not readable |
| #40401E text on white | 10.65:1 | AAA | Lc 94.7 | Preferred for body text |
| #40401E text on black | 1.97:1 | Fails | Lc -7.9 | 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
#F6F6F2
oklch(97.2% 0.005 106.5)
-
Step 100
100
#EAEBE2
oklch(93.7% 0.012 111.8)
-
Step 200
200
#DADBCA
oklch(88.6% 0.023 109.6)
-
Step 300
300
#C2C3A6
oklch(80.9% 0.04 108.9)
-
Step 400
400
#A3A477
oklch(70.6% 0.062 109)
-
Step 500
500
#8D8E53
oklch(63.2% 0.08 109.3)
-
Step 600
600
#787737
oklch(55.6% 0.086 108.1)
-
Step 700
700
#656429
oklch(49.1% 0.08 108.1)
-
Step 800
800
#525223
oklch(42.7% 0.067 108.9)
-
Step 900
900 (this color)
#40401E
oklch(36.3% 0.052 108.7)
-
Step 950
950
#282814
oklch(27.1% 0.034 108.5)
#40401E 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) | #453E1B | 0.010 |
| Deuteranopia (no green cones) | #453F20 | 0.010 |
| Tritanopia (no blue cones) | #443C38 | 0.047 |
| Achromatopsia (no color) | #3E3E3E | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40401E
#40401E
oklch(36.3% 0.052 108.7)
- #3D3958
#3D3958
oklch(36.3% 0.053 289.4)
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 #40401E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.032
- Pakistan Green #283618 ΔE 0.054
- Charcoal Grey #3C4142 ΔE 0.055
- Evergreen #05472A ΔE 0.061
- Mud Brown #60460F ΔE 0.063
- Pine Green #0A481E ΔE 0.063
- Green Brown #544E03 ΔE 0.064
- Onyx #343A40 ΔE 0.065
Use #40401E 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.