#40422D
Closest named color: Charcoal Grey (#3C4142). oklch(37.1% 0.034 112.5), rgb(64, 66, 45).
Aa
White text reads best on this color (10.31:1).
About this color
#40422D is a dark, muted brown. In OKLCH its lightness is 37%, its chroma 0.034 and its hue 112°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.036 away. White text reads best on it, at 10.31:1.
| Hue family | Browns |
| Lightness | dark (37%) |
| Chroma | muted (0.034) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.03:1 |
| White text | 10.31:1 |
Values
| HEX | #40422D |
| RGB | rgb(64, 66, 45) |
| HSL | hsl(66, 19%, 22%) |
| OKLCH | oklch(37.1% 0.034 112.5) |
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 #40422D | 10.31:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #40422D | 2.03:1 | Fails | Lc 10.0 | Not readable |
| #40422D text on white | 10.31:1 | AAA | Lc 94.0 | Preferred for body text |
| #40422D text on black | 2.03:1 | Fails | Lc -8.6 | 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
#EAEAE5
oklch(93.6% 0.007 106.5)
-
Step 200
200
#D9DAD0
oklch(88.5% 0.014 111.3)
-
Step 300
300
#C0C3B0
oklch(81% 0.026 114.3)
-
Step 400
400
#A0A487
oklch(70.8% 0.041 113.8)
-
Step 500
500
#898D69
oklch(63% 0.052 113)
-
Step 600
600
#737750
oklch(55.6% 0.057 113)
-
Step 700
700
#616441
oklch(49.1% 0.052 112.3)
-
Step 800
800
#4F5235
oklch(42.8% 0.045 113.1)
-
Step 900
900 (this color)
#40422D
oklch(37.1% 0.034 112.5)
-
Step 950
950
#26281B
oklch(27.1% 0.023 115.1)
#40422D 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) | #45402C | 0.010 |
| Deuteranopia (no green cones) | #45412E | 0.009 |
| Tritanopia (no blue cones) | #43403C | 0.028 |
| Achromatopsia (no color) | #404040 | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40422D
#40422D
oklch(37.1% 0.034 112.5)
- #403D51
#403D51
oklch(37.1% 0.034 291.5)
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 #40422D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.036
- Dark Olive #373E02 ΔE 0.051
- Onyx #343A40 ΔE 0.051
- Dark Slate Gray #2F4F4F ΔE 0.058
- Pakistan Green #283618 ΔE 0.063
- Evergreen #05472A ΔE 0.064
- Charcoal #264653 ΔE 0.066
- Mud Brown #60460F ΔE 0.066
Use #40422D 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.