#40390F
Closest named color: Dark Olive (#373E02). oklch(34.2% 0.06 99.7), rgb(64, 57, 15).
Aa
White text reads best on this color (11.60:1).
About this color
#40390F is a dark, muted brown. In OKLCH its lightness is 34%, its chroma 0.060 and its hue 100°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.027 away. White text reads best on it, at 11.60:1.
| Hue family | Browns |
| Lightness | dark (34%) |
| Chroma | muted (0.060) |
| Temperature | warm |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.81:1 |
| White text | 11.60:1 |
Values
| HEX | #40390F |
| RGB | rgb(64, 57, 15) |
| HSL | hsl(51, 62%, 15%) |
| OKLCH | oklch(34.2% 0.06 99.7) |
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 #40390F | 11.60:1 | AAA | Lc -100.3 | Preferred for body text |
| Black text on #40390F | 1.81:1 | Fails | Lc 0.0 | Not readable |
| #40390F text on white | 11.60:1 | AAA | Lc 96.6 | Preferred for body text |
| #40390F text on black | 1.81:1 | 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
#ECEAE0
oklch(93.6% 0.013 97.4)
-
Step 200
200
#DDDAC7
oklch(88.6% 0.026 99.6)
-
Step 300
300
#C7C2A1
oklch(80.9% 0.045 100.2)
-
Step 400
400
#ABA26D
oklch(70.7% 0.072 99.7)
-
Step 500
500
#978B45
oklch(63.2% 0.092 99.7)
-
Step 600
600
#817424
oklch(55.5% 0.1 99.9)
-
Step 700
700
#6D6116
oklch(49% 0.092 99.7)
-
Step 800
800
#595015
oklch(42.8% 0.078 100.4)
-
Step 900
900 (this color)
#40390F
oklch(34.2% 0.06 99.7)
-
Step 950
950
#2B2710
oklch(27.1% 0.038 99.6)
#40390F 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) | #3F3709 | 0.007 |
| Deuteranopia (no green cones) | #413A11 | 0.004 |
| Tritanopia (no blue cones) | #463430 | 0.055 |
| Achromatopsia (no color) | #393939 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40390F
#40390F
oklch(34.2% 0.06 99.7)
- #323557
#323557
oklch(34.3% 0.059 278.9)
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 #40390F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.027
- Pakistan Green #283618 ΔE 0.043
- Forrest Green #154406 ΔE 0.068
- Charcoal Grey #3C4142 ΔE 0.069
- Evergreen #05472A ΔE 0.070
- Pine Green #0A481E ΔE 0.071
- Hunter Green #0B4008 ΔE 0.071
- Onyx #343A40 ΔE 0.072
Use #40390F 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.