#403601
Closest named color: Dark Olive (#373E02). oklch(33.4% 0.068 97.5), rgb(64, 54, 1).
Aa
White text reads best on this color (12.02:1).
About this color
#403601 is a dark, muted brown. In OKLCH its lightness is 33%, its chroma 0.068 and its hue 97°. 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 12.02:1.
| Hue family | Browns |
| Lightness | dark (33%) |
| Chroma | muted (0.068) |
| Temperature | warm |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.74:1 |
| White text | 12.02:1 |
Values
| HEX | #403601 |
| RGB | rgb(64, 54, 1) |
| HSL | hsl(50, 97%, 13%) |
| OKLCH | oklch(33.4% 0.068 97.5) |
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 #403601 | 12.02:1 | AAA | Lc -101.0 | Preferred for body text |
| Black text on #403601 | 1.74:1 | Fails | Lc 0.0 | Not readable |
| #403601 text on white | 12.02:1 | AAA | Lc 97.4 | Preferred for body text |
| #403601 text on black | 1.74:1 | 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
#F6F5F0
oklch(97% 0.007 97.4)
-
Step 100
100
#ECEADF
oklch(93.6% 0.015 98.3)
-
Step 200
200
#DEDAC5
oklch(88.6% 0.028 98.1)
-
Step 300
300
#C9C19C
oklch(80.8% 0.051 97.2)
-
Step 400
400
#AEA165
oklch(70.6% 0.081 97.4)
-
Step 500
500
#9B8A37
oklch(63.2% 0.105 97.7)
-
Step 600
600
#867305
oklch(55.7% 0.113 97.4)
-
Step 700
700
#716000
oklch(49.1% 0.101 97)
-
Step 800
800
#5C4F02
oklch(42.8% 0.087 98.1)
-
Step 900
900 (this color)
#403601
oklch(33.4% 0.068 97.5)
-
Step 950
950
#2C260B
oklch(26.9% 0.043 96.8)
#403601 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) | #3D3400 | 0.009 |
| Deuteranopia (no green cones) | #403804 | 0.006 |
| Tritanopia (no blue cones) | #46312D | 0.063 |
| Achromatopsia (no color) | #363636 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #403601
#403601
oklch(33.4% 0.068 97.5)
- #2E3259
#2E3259
oklch(33.3% 0.069 277.6)
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 #403601, 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 0.042
- Forrest Green #154406 ΔE 0.070
- Hunter Green #0B4008 ΔE 0.071
- Pine Green #0A481E ΔE 0.076
- Evergreen #05472A ΔE 0.077
- Charcoal Grey #3C4142 ΔE 0.080
- Onyx #343A40 ΔE 0.081
Use #403601 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.