#40310B
Closest named color: Pakistan Green (#283618). oklch(32.2% 0.057 86.5), rgb(64, 49, 11).
Aa
White text reads best on this color (12.63:1).
About this color
#40310B is a dark, muted brown. In OKLCH its lightness is 32%, its chroma 0.057 and its hue 87°. Its hue sits on the warm side of the wheel. The nearest named color is Pakistan Green (#283618), ΔE 0.042 away. White text reads best on it, at 12.63:1.
| Hue family | Browns |
| Lightness | dark (32%) |
| Chroma | muted (0.057) |
| Temperature | warm |
| Nearest name | Pakistan Green (#283618) |
| Black text | 1.66:1 |
| White text | 12.63:1 |
Values
| HEX | #40310B |
| RGB | rgb(64, 49, 11) |
| HSL | hsl(43, 71%, 15%) |
| OKLCH | oklch(32.2% 0.057 86.5) |
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 #40310B | 12.63:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #40310B | 1.66:1 | Fails | Lc 0.0 | Not readable |
| #40310B text on white | 12.63:1 | AAA | Lc 98.5 | Preferred for body text |
| #40310B text on black | 1.66:1 | 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 950.
-
Step 50
50
#F8F5EF
oklch(97.1% 0.009 84.6)
-
Step 100
100
#EFE9DC
oklch(93.5% 0.018 86.1)
-
Step 200
200
#E4D8BE
oklch(88.5% 0.037 86.2)
-
Step 300
300
#D4BE8F
oklch(80.9% 0.067 85.7)
-
Step 400
400
#BE9C4B
oklch(70.8% 0.108 86.6)
-
Step 500
500
#AB8300
oklch(63.1% 0.129 87)
-
Step 600
600
#906E00
oklch(55.7% 0.114 87.1)
-
Step 700
700
#7A5C00
oklch(49.2% 0.101 86.4)
-
Step 800
800
#644B00
oklch(42.8% 0.087 86.6)
-
Step 900
900
#533E00
oklch(37.6% 0.077 86.9)
-
Step 950
950 (this color)
#40310B
oklch(32.2% 0.057 86.5)
#40310B 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) | #383106 | 0.017 |
| Deuteranopia (no green cones) | #3C350D | 0.014 |
| Tritanopia (no blue cones) | #462C29 | 0.050 |
| Achromatopsia (no color) | #333333 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40310B
#40310B
oklch(32.2% 0.057 86.5)
- #263251
#263251
oklch(32.2% 0.058 267.1)
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 #40310B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pakistan Green #283618 ΔE 0.042
- Dark Olive #373E02 ΔE 0.047
- Chocolate Brown #411900 ΔE 0.068
- Dark Brown #341C02 ΔE 0.072
- Onyx #343A40 ΔE 0.073
- Charcoal Grey #3C4142 ΔE 0.078
- Hunter Green #0B4008 ΔE 0.083
- Forrest Green #154406 ΔE 0.084
Use #40310B 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.