#423924
Closest named color: Charcoal Grey (#3C4142). oklch(34.8% 0.036 87.3), rgb(66, 57, 36).
Aa
White text reads best on this color (11.39:1).
About this color
#423924 is a dark, muted brown. In OKLCH its lightness is 35%, its chroma 0.036 and its hue 87°. Its hue sits on the warm side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.046 away. White text reads best on it, at 11.39:1.
| Hue family | Browns |
| Lightness | dark (35%) |
| Chroma | muted (0.036) |
| Temperature | warm |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.84:1 |
| White text | 11.39:1 |
Values
| HEX | #423924 |
| RGB | rgb(66, 57, 36) |
| HSL | hsl(42, 29%, 20%) |
| OKLCH | oklch(34.8% 0.036 87.3) |
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 #423924 | 11.39:1 | AAA | Lc -100.0 | Preferred for body text |
| Black text on #423924 | 1.84:1 | Fails | Lc 7.6 | Not readable |
| #423924 text on white | 11.39:1 | AAA | Lc 96.3 | Preferred for body text |
| #423924 text on black | 1.84:1 | 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
#ECEAE4
oklch(93.7% 0.008 91.5)
-
Step 200
200
#DDD9CE
oklch(88.5% 0.015 90.2)
-
Step 300
300
#C8C0AD
oklch(80.9% 0.028 87.9)
-
Step 400
400
#AC9F82
oklch(70.6% 0.043 86.7)
-
Step 500
500
#988863
oklch(63.2% 0.055 87.3)
-
Step 600
600
#82714A
oklch(55.5% 0.059 86.9)
-
Step 700
700
#6E5F3B
oklch(49.1% 0.056 87.7)
-
Step 800
800
#5A4E31
oklch(42.8% 0.047 87.9)
-
Step 900
900 (this color)
#423924
oklch(34.8% 0.036 87.3)
-
Step 950
950
#2B261A
oklch(27% 0.022 88)
#423924 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) | #3E3822 | 0.009 |
| Deuteranopia (no green cones) | #403B25 | 0.007 |
| Tritanopia (no blue cones) | #463634 | 0.032 |
| Achromatopsia (no color) | #3A3A3A | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #423924
#423924
oklch(34.8% 0.036 87.3)
- #323A4D
#323A4D
oklch(34.9% 0.035 266.8)
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 #423924, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.046
- Onyx #343A40 ΔE 0.049
- Dark Olive #373E02 ΔE 0.050
- Pakistan Green #283618 ΔE 0.051
- Gunmetal #293241 ΔE 0.073
- Evergreen #05472A ΔE 0.076
- Mud Brown #60460F ΔE 0.076
- Charcoal #264653 ΔE 0.079
Use #423924 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.