#40381E
Closest named color: Dark Olive (#373E02). oklch(34.2% 0.042 92.9), rgb(64, 56, 30).
Aa
White text reads best on this color (11.65:1).
About this color
#40381E is a dark, muted brown. In OKLCH its lightness is 34%, its chroma 0.042 and its hue 93°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.043 away. White text reads best on it, at 11.65:1.
| Hue family | Browns |
| Lightness | dark (34%) |
| Chroma | muted (0.042) |
| Temperature | warm |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.80:1 |
| White text | 11.65:1 |
Values
| HEX | #40381E |
| RGB | rgb(64, 56, 30) |
| HSL | hsl(46, 36%, 18%) |
| OKLCH | oklch(34.2% 0.042 92.9) |
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 #40381E | 11.65:1 | AAA | Lc -100.4 | Preferred for body text |
| Black text on #40381E | 1.80:1 | Fails | Lc 0.0 | Not readable |
| #40381E text on white | 11.65:1 | AAA | Lc 96.8 | Preferred for body text |
| #40381E text on black | 1.80:1 | 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
#F6F5F2
oklch(97% 0.004 91.4)
-
Step 100
100
#ECEAE3
oklch(93.7% 0.01 93.6)
-
Step 200
200
#DDD9CC
oklch(88.5% 0.018 92.7)
-
Step 300
300
#C7C1AA
oklch(81% 0.032 95)
-
Step 400
400
#ABA07D
oklch(70.6% 0.05 92.7)
-
Step 500
500
#97895C
oklch(63.2% 0.064 92.8)
-
Step 600
600
#827241
oklch(55.6% 0.07 91.9)
-
Step 700
700
#6E6033
oklch(49.2% 0.066 92.6)
-
Step 800
800
#594E2B
oklch(42.6% 0.054 92.5)
-
Step 900
900 (this color)
#40381E
oklch(34.2% 0.042 92.9)
-
Step 950
950
#2B2617
oklch(27% 0.027 91.8)
#40381E 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) | #3D371C | 0.007 |
| Deuteranopia (no green cones) | #3F391F | 0.003 |
| Tritanopia (no blue cones) | #453432 | 0.040 |
| Achromatopsia (no color) | #383838 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40381E
#40381E
oklch(34.2% 0.042 92.9)
- #31374F
#31374F
oklch(34.2% 0.043 273.1)
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 #40381E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.043
- Pakistan Green #283618 ΔE 0.044
- Charcoal Grey #3C4142 ΔE 0.054
- Onyx #343A40 ΔE 0.055
- Evergreen #05472A ΔE 0.073
- Gunmetal #293241 ΔE 0.076
- Pine Green #0A481E ΔE 0.078
- Mud Brown #60460F ΔE 0.079
Use #40381E 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.