#424B21
Closest named color: Green Brown (#544E03). oklch(39.4% 0.064 119.4), rgb(66, 75, 33).
Aa
White text reads best on this color (9.29:1).
About this color
#424B21 is a dark, muted brown. In OKLCH its lightness is 39%, its chroma 0.064 and its hue 119°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Green Brown (#544E03), ΔE 0.037 away. White text reads best on it, at 9.29:1.
| Hue family | Browns |
| Lightness | dark (39%) |
| Chroma | muted (0.064) |
| Temperature | in between |
| Nearest name | Green Brown (#544E03) |
| Black text | 2.26:1 |
| White text | 9.29:1 |
Values
| HEX | #424B21 |
| RGB | rgb(66, 75, 33) |
| HSL | hsl(73, 39%, 21%) |
| OKLCH | oklch(39.4% 0.064 119.4) |
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 #424B21 | 9.29:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #424B21 | 2.26:1 | Fails | Lc 12.6 | Not readable |
| #424B21 text on white | 9.29:1 | AAA | Lc 91.4 | Preferred for body text |
| #424B21 text on black | 2.26:1 | Fails | Lc -11.0 | 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
#F5F6F1
oklch(97.1% 0.007 115.7)
-
Step 100
100
#E8EBE1
oklch(93.5% 0.014 120.3)
-
Step 200
200
#D7DCC9
oklch(88.5% 0.026 118.9)
-
Step 300
300
#BCC6A3
oklch(80.9% 0.049 120.5)
-
Step 400
400
#9BA871
oklch(70.8% 0.077 119.2)
-
Step 500
500
#82924A
oklch(63.1% 0.099 119.6)
-
Step 600
600
#6C7C2B
oklch(55.6% 0.107 119.5)
-
Step 700
700
#5A681E
oklch(49% 0.099 119.5)
-
Step 800
800
#4A551B
oklch(42.7% 0.082 119.1)
-
Step 900
900 (this color)
#424B21
oklch(39.4% 0.064 119.4)
-
Step 950
950
#242911
oklch(26.9% 0.041 118.9)
#424B21 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) | #50471D | 0.024 |
| Deuteranopia (no green cones) | #4E4723 | 0.024 |
| Tritanopia (no blue cones) | #454741 | 0.054 |
| Achromatopsia (no color) | #474747 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #424B21
#424B21
oklch(39.4% 0.064 119.4)
- #4B3E64
#4B3E64
oklch(39.4% 0.065 299.2)
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 #424B21, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Green Brown #544E03 ΔE 0.037
- Navy Green #35530A ΔE 0.042
- Dark Olive #373E02 ΔE 0.051
- Mud Brown #60460F ΔE 0.051
- Pine #2B5D34 ΔE 0.057
- Pine Green #0A481E ΔE 0.063
- Army Green #4B5D16 ΔE 0.063
- Evergreen #05472A ΔE 0.065
Use #424B21 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.