#423E1B
Closest named color: Dark Olive (#373E02). oklch(35.9% 0.053 102.8), rgb(66, 62, 27).
Aa
White text reads best on this color (10.84:1).
About this color
#423E1B is a dark, muted brown. In OKLCH its lightness is 36%, its chroma 0.053 and its hue 103°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.032 away. White text reads best on it, at 10.84:1.
| Hue family | Browns |
| Lightness | dark (36%) |
| Chroma | muted (0.053) |
| Temperature | warm |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.93:1 |
| White text | 10.84:1 |
Values
| HEX | #423E1B |
| RGB | rgb(66, 62, 27) |
| HSL | hsl(54, 42%, 18%) |
| OKLCH | oklch(35.9% 0.053 102.8) |
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 #423E1B | 10.84:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #423E1B | 1.93:1 | Fails | Lc 8.8 | Not readable |
| #423E1B text on white | 10.84:1 | AAA | Lc 95.1 | Preferred for body text |
| #423E1B text on black | 1.93:1 | Fails | Lc -7.5 | 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
#F6F6F2
oklch(97.2% 0.005 106.5)
-
Step 100
100
#EBEAE2
oklch(93.6% 0.011 100.8)
-
Step 200
200
#DBDACA
oklch(88.5% 0.022 103.9)
-
Step 300
300
#C5C2A5
oklch(80.9% 0.04 102.4)
-
Step 400
400
#A8A374
oklch(70.8% 0.064 102.8)
-
Step 500
500
#928C50
oklch(63.1% 0.081 103.4)
-
Step 600
600
#7D7533
oklch(55.5% 0.088 102.4)
-
Step 700
700
#696225
oklch(49% 0.082 102.8)
-
Step 800
800
#565020
oklch(42.6% 0.068 102.2)
-
Step 900
900 (this color)
#423E1B
oklch(35.9% 0.053 102.8)
-
Step 950
950
#292713
oklch(26.9% 0.034 103.4)
#423E1B 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) | #433C18 | 0.006 |
| Deuteranopia (no green cones) | #453E1D | 0.006 |
| Tritanopia (no blue cones) | #473A36 | 0.048 |
| Achromatopsia (no color) | #3D3D3D | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #423E1B
#423E1B
oklch(35.9% 0.053 102.8)
- #393958
#393958
oklch(35.9% 0.053 283.4)
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 #423E1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.032
- Pakistan Green #283618 ΔE 0.053
- Charcoal Grey #3C4142 ΔE 0.057
- Mud Brown #60460F ΔE 0.063
- Onyx #343A40 ΔE 0.066
- Evergreen #05472A ΔE 0.066
- Green Brown #544E03 ΔE 0.067
- Pine Green #0A481E ΔE 0.068
Use #423E1B 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.