#421E2B
Closest named color: Chocolate Brown (#411900). oklch(29% 0.058 358.4), rgb(66, 30, 43).
Aa
White text reads best on this color (14.46:1).
About this color
#421E2B is a dark, muted red. In OKLCH its lightness is 29%, its chroma 0.058 and its hue 358°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.061 away. White text reads best on it, at 14.46:1.
| Hue family | Reds |
| Lightness | dark (29%) |
| Chroma | muted (0.058) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.45:1 |
| White text | 14.46:1 |
Values
| HEX | #421E2B |
| RGB | rgb(66, 30, 43) |
| HSL | hsl(338, 38%, 19%) |
| OKLCH | oklch(29% 0.058 358.4) |
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 #421E2B | 14.46:1 | AAA | Lc -104.0 | Preferred for body text |
| Black text on #421E2B | 1.45:1 | Fails | Lc 0.0 | Not readable |
| #421E2B text on white | 14.46:1 | AAA | Lc 101.0 | Preferred for body text |
| #421E2B text on black | 1.45:1 | 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 950.
-
Step 50
50
#FBF3F5
oklch(97.1% 0.009 0.1)
-
Step 100
100
#F6E5EA
oklch(93.7% 0.02 357.6)
-
Step 200
200
#F0CFD9
oklch(88.5% 0.039 357.7)
-
Step 300
300
#E7AFC0
oklch(81% 0.069 358.8)
-
Step 400
400
#D883A0
oklch(70.8% 0.11 358.4)
-
Step 500
500
#CB6188
oklch(63.1% 0.14 358.7)
-
Step 600
600
#B64572
oklch(55.6% 0.152 358.6)
-
Step 700
700
#9C3660
oklch(49.1% 0.141 358.2)
-
Step 800
800
#7F2D4E
oklch(42.6% 0.118 358.4)
-
Step 900
900
#672A41
oklch(37.8% 0.091 358.7)
-
Step 950
950 (this color)
#421E2B
oklch(29% 0.058 358.4)
#421E2B 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) | #23252B | 0.064 |
| Deuteranopia (no green cones) | #2C2C2A | 0.059 |
| Tritanopia (no blue cones) | #471C23 | 0.017 |
| Achromatopsia (no color) | #292929 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #421E2B
#421E2B
oklch(29% 0.058 358.4)
- #00342C
#00342C
oklch(29.1% 0.053 178.9)
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 #421E2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.061
- Aubergine #3D0734 ΔE 0.062
- Space Cadet #2B2D42 ΔE 0.065
- Dark Plum #3F012C ΔE 0.065
- Eggplant #380835 ΔE 0.068
- Jet #212529 ΔE 0.068
- Mahogany #4A0100 ΔE 0.070
- Dark Brown #341C02 ΔE 0.071
Use #421E2B 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.