#423323
Closest named color: Onyx (#343A40). oklch(33.3% 0.034 68), rgb(66, 51, 35).
Aa
White text reads best on this color (12.14:1).
About this color
#423323 is a dark, muted brown. In OKLCH its lightness is 33%, its chroma 0.034 and its hue 68°. Its hue sits on the warm side of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.049 away. White text reads best on it, at 12.14:1.
| Hue family | Browns |
| Lightness | dark (33%) |
| Chroma | muted (0.034) |
| Temperature | warm |
| Nearest name | Onyx (#343A40) |
| Black text | 1.72:1 |
| White text | 12.14:1 |
Values
| HEX | #423323 |
| RGB | rgb(66, 51, 35) |
| HSL | hsl(31, 31%, 20%) |
| OKLCH | oklch(33.3% 0.034 68) |
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 #423323 | 12.14:1 | AAA | Lc -101.2 | Preferred for body text |
| Black text on #423323 | 1.72:1 | Fails | Lc 0.0 | Not readable |
| #423323 text on white | 12.14:1 | AAA | Lc 97.7 | Preferred for body text |
| #423323 text on black | 1.72:1 | 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
#F7F5F3
oklch(97.1% 0.003 67.8)
-
Step 100
100
#EDE9E5
oklch(93.6% 0.007 67.7)
-
Step 200
200
#E0D8CF
oklch(88.6% 0.015 70.9)
-
Step 300
300
#CCBEB0
oklch(80.9% 0.025 67.5)
-
Step 400
400
#B29C86
oklch(70.6% 0.04 67.1)
-
Step 500
500
#9F8468
oklch(63.1% 0.052 67.7)
-
Step 600
600
#8A6D4F
oklch(55.6% 0.057 67.2)
-
Step 700
700
#755B40
oklch(49.1% 0.053 67.2)
-
Step 800
800
#5F4B35
oklch(42.8% 0.043 68.9)
-
Step 900
900 (this color)
#423323
oklch(33.3% 0.034 68)
-
Step 950
950
#2E251B
oklch(27.2% 0.022 69.6)
#423323 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) | #383422 | 0.019 |
| Deuteranopia (no green cones) | #3C3723 | 0.016 |
| Tritanopia (no blue cones) | #47302F | 0.027 |
| Achromatopsia (no color) | #363636 | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #423323
#423323
oklch(33.3% 0.034 68)
- #283847
#283847
oklch(33.3% 0.034 247.2)
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 #423323, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.049
- Pakistan Green #283618 ΔE 0.052
- Charcoal Grey #3C4142 ΔE 0.055
- Dark Olive #373E02 ΔE 0.062
- Gunmetal #293241 ΔE 0.066
- Space Cadet #2B2D42 ΔE 0.075
- Chocolate Brown #411900 ΔE 0.076
- Dark Blue Grey #1F3B4D ΔE 0.080
Use #423323 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.