#40451F
Closest named color: Dark Olive (#373E02). oklch(37.6% 0.058 115.4), rgb(64, 69, 31).
Aa
White text reads best on this color (10.05:1).
About this color
#40451F is a dark, muted brown. In OKLCH its lightness is 38%, its chroma 0.058 and its hue 115°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.036 away. White text reads best on it, at 10.05:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | muted (0.058) |
| Temperature | in between |
| Nearest name | Dark Olive (#373E02) |
| Black text | 2.08:1 |
| White text | 10.05:1 |
Values
| HEX | #40451F |
| RGB | rgb(64, 69, 31) |
| HSL | hsl(68, 38%, 20%) |
| OKLCH | oklch(37.6% 0.058 115.4) |
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 #40451F | 10.05:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #40451F | 2.08:1 | Fails | Lc 10.6 | Not readable |
| #40451F text on white | 10.05:1 | AAA | Lc 93.3 | Preferred for body text |
| #40451F text on black | 2.08:1 | Fails | Lc -9.2 | 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
#F5F6F2
oklch(97.1% 0.005 117.9)
-
Step 100
100
#E9EBE2
oklch(93.6% 0.012 116.8)
-
Step 200
200
#D8DBCA
oklch(88.4% 0.023 115)
-
Step 300
300
#BFC4A5
oklch(80.8% 0.043 114.8)
-
Step 400
400
#9EA674
oklch(70.6% 0.069 115.6)
-
Step 500
500
#87904F
oklch(63.1% 0.089 115.5)
-
Step 600
600
#717A32
oklch(55.6% 0.097 115.6)
-
Step 700
700
#5F6724
oklch(49.2% 0.091 115.6)
-
Step 800
800
#4D5420
oklch(42.7% 0.075 116.1)
-
Step 900
900 (this color)
#40451F
oklch(37.6% 0.058 115.4)
-
Step 950
950
#262913
oklch(27.1% 0.037 115.3)
#40451F 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) | #4A421C | 0.018 |
| Deuteranopia (no green cones) | #494221 | 0.018 |
| Tritanopia (no blue cones) | #44413C | 0.051 |
| Achromatopsia (no color) | #424242 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40451F
#40451F
oklch(37.6% 0.058 115.4)
- #443B5D
#443B5D
oklch(37.7% 0.058 295.7)
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 #40451F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.036
- Green Brown #544E03 ΔE 0.052
- Navy Green #35530A ΔE 0.056
- Mud Brown #60460F ΔE 0.057
- Evergreen #05472A ΔE 0.059
- Pine Green #0A481E ΔE 0.059
- Charcoal Grey #3C4142 ΔE 0.059
- Forrest Green #154406 ΔE 0.065
Use #40451F 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.