#403C18
Closest named color: Dark Olive (#373E02). oklch(35.1% 0.054 103), rgb(64, 60, 24).
Aa
White text reads best on this color (11.18:1).
About this color
#403C18 is a dark, muted brown. In OKLCH its lightness is 35%, its chroma 0.054 and its hue 103°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.029 away. White text reads best on it, at 11.18:1.
| Hue family | Browns |
| Lightness | dark (35%) |
| Chroma | muted (0.054) |
| Temperature | warm |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.87:1 |
| White text | 11.18:1 |
Values
| HEX | #403C18 |
| RGB | rgb(64, 60, 24) |
| HSL | hsl(54, 45%, 17%) |
| OKLCH | oklch(35.1% 0.054 103) |
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 #403C18 | 11.18:1 | AAA | Lc -99.6 | Preferred for body text |
| Black text on #403C18 | 1.87:1 | Fails | Lc 8.1 | Not readable |
| #403C18 text on white | 11.18:1 | AAA | Lc 95.8 | Preferred for body text |
| #403C18 text on black | 1.87:1 | 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
#F6F6F2
oklch(97.2% 0.005 106.5)
-
Step 100
100
#EBEAE2
oklch(93.6% 0.011 100.8)
-
Step 200
200
#DBDAC9
oklch(88.5% 0.023 104.1)
-
Step 300
300
#C5C2A4
oklch(80.9% 0.041 102.6)
-
Step 400
400
#A8A373
oklch(70.8% 0.066 102.9)
-
Step 500
500
#928C4E
oklch(63.1% 0.083 103.6)
-
Step 600
600
#7D7531
oklch(55.5% 0.09 102.6)
-
Step 700
700
#696223
oklch(48.9% 0.084 103)
-
Step 800
800
#56501F
oklch(42.6% 0.069 102.4)
-
Step 900
900 (this color)
#403C18
oklch(35.1% 0.054 103)
-
Step 950
950
#292713
oklch(26.9% 0.034 103.4)
#403C18 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) | #413A14 | 0.006 |
| Deuteranopia (no green cones) | #433C1A | 0.006 |
| Tritanopia (no blue cones) | #453834 | 0.049 |
| Achromatopsia (no color) | #3B3B3B | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #403C18
#403C18
oklch(35.1% 0.054 103)
- #373756
#373756
oklch(35.1% 0.054 283.3)
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 #403C18, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.029
- Pakistan Green #283618 ΔE 0.047
- Charcoal Grey #3C4142 ΔE 0.060
- Evergreen #05472A ΔE 0.066
- Onyx #343A40 ΔE 0.066
- Pine Green #0A481E ΔE 0.067
- Forrest Green #154406 ΔE 0.068
- Mud Brown #60460F ΔE 0.069
Use #403C18 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.