#423C29
Closest named color: Charcoal Grey (#3C4142). oklch(35.7% 0.032 92.6), rgb(66, 60, 41).
Aa
White text reads best on this color (10.99:1).
About this color
#423C29 is a dark, muted brown. In OKLCH its lightness is 36%, its chroma 0.032 and its hue 93°. Its hue sits on the warm side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.038 away. White text reads best on it, at 10.99:1.
| Hue family | Browns |
| Lightness | dark (36%) |
| Chroma | muted (0.032) |
| Temperature | warm |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.91:1 |
| White text | 10.99:1 |
Values
| HEX | #423C29 |
| RGB | rgb(66, 60, 41) |
| HSL | hsl(46, 23%, 21%) |
| OKLCH | oklch(35.7% 0.032 92.6) |
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 #423C29 | 10.99:1 | AAA | Lc -99.3 | Preferred for body text |
| Black text on #423C29 | 1.91:1 | Fails | Lc 8.5 | Not readable |
| #423C29 text on white | 10.99:1 | AAA | Lc 95.4 | Preferred for body text |
| #423C29 text on black | 1.91:1 | Fails | Lc 0.0 | 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
#F6F5F3
oklch(97% 0.003 84.6)
-
Step 100
100
#EBEAE5
oklch(93.6% 0.007 97.4)
-
Step 200
200
#DCD9D0
oklch(88.5% 0.013 91.5)
-
Step 300
300
#C6C1B0
oklch(81% 0.024 93.4)
-
Step 400
400
#A9A086
oklch(70.6% 0.038 91.2)
-
Step 500
500
#948968
oklch(63.1% 0.049 91.8)
-
Step 600
600
#7E734F
oklch(55.6% 0.053 93.1)
-
Step 700
700
#6A6040
oklch(49% 0.049 92.8)
-
Step 800
800
#574F35
oklch(42.8% 0.041 93)
-
Step 900
900 (this color)
#423C29
oklch(35.7% 0.032 92.6)
-
Step 950
950
#2A261B
oklch(26.9% 0.02 90.4)
#423C29 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) | #403B28 | 0.005 |
| Deuteranopia (no green cones) | #423D2A | 0.003 |
| Tritanopia (no blue cones) | #463937 | 0.029 |
| Achromatopsia (no color) | #3C3C3C | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #423C29
#423C29
oklch(35.7% 0.032 92.6)
- #363B4D
#363B4D
oklch(35.5% 0.032 272.6)
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 #423C29, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.038
- Onyx #343A40 ΔE 0.046
- Dark Olive #373E02 ΔE 0.052
- Pakistan Green #283618 ΔE 0.056
- Dark Slate Gray #2F4F4F ΔE 0.072
- Charcoal #264653 ΔE 0.072
- Mud Brown #60460F ΔE 0.072
- Evergreen #05472A ΔE 0.072
Use #423C29 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.