#421B2A
Closest named color: Aubergine (#3D0734). oklch(28.5% 0.063 357.6), rgb(66, 27, 42).
Aa
White text reads best on this color (14.76:1).
About this color
#421B2A is a dark, muted red. In OKLCH its lightness is 28%, its chroma 0.063 and its hue 358°. Its hue sits on the warm side of the wheel. The nearest named color is Aubergine (#3D0734), ΔE 0.056 away. White text reads best on it, at 14.76:1.
| Hue family | Reds |
| Lightness | dark (28%) |
| Chroma | muted (0.063) |
| Temperature | warm |
| Nearest name | Aubergine (#3D0734) |
| Black text | 1.42:1 |
| White text | 14.76:1 |
Values
| HEX | #421B2A |
| RGB | rgb(66, 27, 42) |
| HSL | hsl(337, 42%, 18%) |
| OKLCH | oklch(28.5% 0.063 357.6) |
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 #421B2A | 14.76:1 | AAA | Lc -104.2 | Preferred for body text |
| Black text on #421B2A | 1.42:1 | Fails | Lc 0.0 | Not readable |
| #421B2A text on white | 14.76:1 | AAA | Lc 101.3 | Preferred for body text |
| #421B2A text on black | 1.42:1 | 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
#FCF3F5
oklch(97.2% 0.01 2)
-
Step 100
100
#F7E4EA
oklch(93.6% 0.022 356.3)
-
Step 200
200
#F1CED9
oklch(88.4% 0.042 357.1)
-
Step 300
300
#EAADC1
oklch(81% 0.076 357.5)
-
Step 400
400
#DC7FA1
oklch(70.6% 0.121 357.3)
-
Step 500
500
#D05C8A
oklch(63.2% 0.154 357.6)
-
Step 600
600
#BB3E73
oklch(55.6% 0.167 357.9)
-
Step 700
700
#A02F61
oklch(49% 0.155 357.4)
-
Step 800
800
#82294F
oklch(42.7% 0.127 357.7)
-
Step 900
900
#692642
oklch(37.6% 0.101 357)
-
Step 950
950 (this color)
#421B2A
oklch(28.5% 0.063 357.6)
#421B2A 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) | #21232A | 0.069 |
| Deuteranopia (no green cones) | #2B2B29 | 0.065 |
| Tritanopia (no blue cones) | #471821 | 0.018 |
| Achromatopsia (no color) | #282828 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #421B2A
#421B2A
oklch(28.5% 0.063 357.6)
- #00322A
#00322A
oklch(28.4% 0.052 178.5)
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 #421B2A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aubergine #3D0734 ΔE 0.056
- Dark Plum #3F012C ΔE 0.058
- Chocolate Brown #411900 ΔE 0.061
- Eggplant #380835 ΔE 0.062
- Mahogany #4A0100 ΔE 0.066
- Eggplant Purple #430541 ΔE 0.068
- Space Cadet #2B2D42 ΔE 0.070
- Jet #212529 ΔE 0.071
Use #421B2A 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.