#423723
Closest named color: Onyx (#343A40). oklch(34.3% 0.036 82), rgb(66, 55, 35).
Aa
White text reads best on this color (11.65:1).
About this color
#423723 is a dark, muted brown. In OKLCH its lightness is 34%, its chroma 0.036 and its hue 82°. 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 11.65:1.
| Hue family | Browns |
| Lightness | dark (34%) |
| Chroma | muted (0.036) |
| Temperature | warm |
| Nearest name | Onyx (#343A40) |
| Black text | 1.80:1 |
| White text | 11.65:1 |
Values
| HEX | #423723 |
| RGB | rgb(66, 55, 35) |
| HSL | hsl(39, 31%, 20%) |
| OKLCH | oklch(34.3% 0.036 82) |
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 #423723 | 11.65:1 | AAA | Lc -100.4 | Preferred for body text |
| Black text on #423723 | 1.80:1 | Fails | Lc 0.0 | Not readable |
| #423723 text on white | 11.65:1 | AAA | Lc 96.8 | Preferred for body text |
| #423723 text on black | 1.80:1 | 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
#ECE9E4
oklch(93.5% 0.007 80.7)
-
Step 200
200
#DED8CE
oklch(88.4% 0.015 80.7)
-
Step 300
300
#C9BFAE
oklch(80.8% 0.026 81.1)
-
Step 400
400
#AE9E83
oklch(70.6% 0.042 80.8)
-
Step 500
500
#9A8764
oklch(63.2% 0.054 82.5)
-
Step 600
600
#85704A
oklch(55.6% 0.06 81.8)
-
Step 700
700
#705E3C
oklch(49.1% 0.055 82.7)
-
Step 800
800
#5C4D31
oklch(42.8% 0.047 82.5)
-
Step 900
900 (this color)
#423723
oklch(34.3% 0.036 82)
-
Step 950
950
#2C251A
oklch(26.9% 0.022 78.8)
#423723 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) | #3C3722 | 0.011 |
| Deuteranopia (no green cones) | #3F3A24 | 0.010 |
| Tritanopia (no blue cones) | #473432 | 0.031 |
| Achromatopsia (no color) | #383838 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #423723
#423723
oklch(34.3% 0.036 82)
- #2F394B
#2F394B
oklch(34.3% 0.034 262)
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 #423723, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.049
- Charcoal Grey #3C4142 ΔE 0.049
- Pakistan Green #283618 ΔE 0.050
- Dark Olive #373E02 ΔE 0.053
- Gunmetal #293241 ΔE 0.071
- Evergreen #05472A ΔE 0.079
- Dark Blue Grey #1F3B4D ΔE 0.081
- Mud Brown #60460F ΔE 0.081
Use #423723 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.