#403D18
Closest named color: Dark Olive (#373E02). oklch(35.4% 0.055 104.6), rgb(64, 61, 24).
Aa
White text reads best on this color (11.06:1).
About this color
#403D18 is a dark, muted brown. In OKLCH its lightness is 35%, its chroma 0.055 and its hue 105°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.028 away. White text reads best on it, at 11.06:1.
| Hue family | Browns |
| Lightness | dark (35%) |
| Chroma | muted (0.055) |
| Temperature | warm |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.89:1 |
| White text | 11.06:1 |
Values
| HEX | #403D18 |
| RGB | rgb(64, 61, 24) |
| HSL | hsl(56, 45%, 17%) |
| OKLCH | oklch(35.4% 0.055 104.6) |
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 #403D18 | 11.06:1 | AAA | Lc -99.4 | Preferred for body text |
| Black text on #403D18 | 1.89:1 | Fails | Lc 8.4 | Not readable |
| #403D18 text on white | 11.06:1 | AAA | Lc 95.5 | Preferred for body text |
| #403D18 text on black | 1.89:1 | 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
#F6F6F1
oklch(97.2% 0.007 106.5)
-
Step 100
100
#EBEAE1
oklch(93.5% 0.012 101.5)
-
Step 200
200
#DBDAC9
oklch(88.5% 0.023 104.1)
-
Step 300
300
#C4C3A4
oklch(81% 0.042 105.8)
-
Step 400
400
#A7A373
oklch(70.7% 0.066 103.9)
-
Step 500
500
#918C4D
oklch(63% 0.085 104.6)
-
Step 600
600
#7C762F
oklch(55.6% 0.092 104.5)
-
Step 700
700
#686322
oklch(49.1% 0.086 104.9)
-
Step 800
800
#55511E
oklch(42.7% 0.071 104.8)
-
Step 900
900 (this color)
#403D18
oklch(35.4% 0.055 104.6)
-
Step 950
950
#292712
oklch(26.9% 0.035 103.7)
#403D18 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) | #423B14 | 0.007 |
| Deuteranopia (no green cones) | #433D1A | 0.006 |
| Tritanopia (no blue cones) | #453935 | 0.050 |
| Achromatopsia (no color) | #3C3C3C | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #403D18
#403D18
oklch(35.4% 0.055 104.6)
- #383757
#383757
oklch(35.3% 0.055 284.6)
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 #403D18, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.028
- Pakistan Green #283618 ΔE 0.048
- Charcoal Grey #3C4142 ΔE 0.060
- Evergreen #05472A ΔE 0.064
- Pine Green #0A481E ΔE 0.066
- Forrest Green #154406 ΔE 0.067
- Onyx #343A40 ΔE 0.067
- Mud Brown #60460F ΔE 0.068
Use #403D18 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.