#40451E
Closest named color: Dark Olive (#373E02). oklch(37.6% 0.059 115.4), rgb(64, 69, 30).
Aa
White text reads best on this color (10.05:1).
About this color
#40451E is a dark, muted brown. In OKLCH its lightness is 38%, its chroma 0.059 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 (0.059) |
| Temperature | in between |
| Nearest name | Dark Olive (#373E02) |
| Black text | 2.08:1 |
| White text | 10.05:1 |
Values
| HEX | #40451E |
| RGB | rgb(64, 69, 30) |
| HSL | hsl(68, 39%, 19%) |
| OKLCH | oklch(37.6% 0.059 115.4) |
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 #40451E | 10.05:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #40451E | 2.08:1 | Fails | Lc 10.6 | Not readable |
| #40451E text on white | 10.05:1 | AAA | Lc 93.3 | Preferred for body text |
| #40451E 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
#F5F6F1
oklch(97.1% 0.007 115.7)
-
Step 100
100
#E9EBE1
oklch(93.6% 0.013 115.8)
-
Step 200
200
#D8DBC9
oklch(88.4% 0.024 114.6)
-
Step 300
300
#BFC5A4
oklch(81% 0.045 115.8)
-
Step 400
400
#9EA673
oklch(70.6% 0.071 115.5)
-
Step 500
500
#87904D
oklch(63% 0.091 115.4)
-
Step 600
600
#717A30
oklch(55.6% 0.098 115.5)
-
Step 700
700
#5F6722
oklch(49.2% 0.092 115.5)
-
Step 800
800
#4D541E
oklch(42.7% 0.077 115.9)
-
Step 900
900 (this color)
#40451E
oklch(37.6% 0.059 115.4)
-
Step 950
950
#262913
oklch(27.1% 0.037 115.3)
#40451E 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) | #4A421A | 0.018 |
| Deuteranopia (no green cones) | #494220 | 0.018 |
| Tritanopia (no blue cones) | #44413C | 0.052 |
| Achromatopsia (no color) | #424242 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40451E
#40451E
oklch(37.6% 0.059 115.4)
- #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 #40451E, 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 0.051
- Navy Green #35530A ΔE 0.055
- Mud Brown #60460F ΔE 0.057
- Pine Green #0A481E ΔE 0.059
- Evergreen #05472A ΔE 0.059
- Charcoal Grey #3C4142 ΔE 0.061
- Forrest Green #154406 ΔE 0.064
Use #40451E 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.