#40492F
Closest named color: Charcoal Grey (#3C4142). oklch(39% 0.043 123.9), rgb(64, 73, 47).
Aa
White text reads best on this color (9.49:1).
About this color
#40492F is a dark, muted brown. In OKLCH its lightness is 39%, its chroma 0.043 and its hue 124°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.047 away. White text reads best on it, at 9.49:1.
| Hue family | Browns |
| Lightness | dark (39%) |
| Chroma | muted (0.043) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.21:1 |
| White text | 9.49:1 |
Values
| HEX | #40492F |
| RGB | rgb(64, 73, 47) |
| HSL | hsl(81, 22%, 24%) |
| OKLCH | oklch(39% 0.043 123.9) |
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 #40492F | 9.49:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #40492F | 2.21:1 | Fails | Lc 12.0 | Not readable |
| #40492F text on white | 9.49:1 | AAA | Lc 92.0 | Preferred for body text |
| #40492F text on black | 2.21:1 | Fails | Lc -10.4 | 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
#F5F6F3
oklch(97.2% 0.004 121.6)
-
Step 100
100
#E8EBE4
oklch(93.6% 0.01 125.7)
-
Step 200
200
#D6DBCE
oklch(88.4% 0.018 124)
-
Step 300
300
#BCC5AE
oklch(81% 0.033 124.6)
-
Step 400
400
#9AA783
oklch(70.8% 0.053 123.9)
-
Step 500
500
#819164
oklch(63.2% 0.067 124.2)
-
Step 600
600
#6A7B4B
oklch(55.7% 0.072 124.6)
-
Step 700
700
#59673C
oklch(49.1% 0.066 123.5)
-
Step 800
800
#495432
oklch(42.7% 0.054 123.3)
-
Step 900
900 (this color)
#40492F
oklch(39% 0.043 123.9)
-
Step 950
950
#24291A
oklch(27.1% 0.027 123.2)
#40492F 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) | #4C462D | 0.020 |
| Deuteranopia (no green cones) | #4B4630 | 0.020 |
| Tritanopia (no blue cones) | #424742 | 0.034 |
| Achromatopsia (no color) | #464646 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40492F
#40492F
oklch(39% 0.043 123.9)
- #4A3F58
#4A3F58
oklch(38.9% 0.044 304.5)
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 #40492F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.047
- Dark Slate Gray #2F4F4F ΔE 0.050
- Green Brown #544E03 ΔE 0.055
- Dark Olive #373E02 ΔE 0.057
- Mud Brown #60460F ΔE 0.058
- Dark Blue Green #005249 ΔE 0.060
- Navy Green #35530A ΔE 0.061
- Evergreen #05472A ΔE 0.063
Use #40492F 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.