#421D21
Closest named color: Chocolate Brown (#411900). oklch(28.5% 0.057 14.6), rgb(66, 29, 33).
Aa
White text reads best on this color (14.69:1).
About this color
#421D21 is a dark, muted red. In OKLCH its lightness is 29%, its chroma 0.057 and its hue 15°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.044 away. White text reads best on it, at 14.69:1.
| Hue family | Reds |
| Lightness | dark (29%) |
| Chroma | muted (0.057) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.42:1 |
| White text | 14.69:1 |
Values
| HEX | #421D21 |
| RGB | rgb(66, 29, 33) |
| HSL | hsl(354, 39%, 19%) |
| OKLCH | oklch(28.5% 0.057 14.6) |
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 #421D21 | 14.69:1 | AAA | Lc -104.2 | Preferred for body text |
| Black text on #421D21 | 1.42:1 | Fails | Lc 0.0 | Not readable |
| #421D21 text on white | 14.69:1 | AAA | Lc 101.3 | Preferred for body text |
| #421D21 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
#FBF3F3
oklch(97% 0.009 17.3)
-
Step 100
100
#F7E5E6
oklch(93.7% 0.02 13.6)
-
Step 200
200
#F1D0D1
oklch(88.6% 0.037 15.8)
-
Step 300
300
#E9AFB3
oklch(80.8% 0.068 14.1)
-
Step 400
400
#DC838B
oklch(70.7% 0.11 14.5)
-
Step 500
500
#CF626F
oklch(63.1% 0.138 14.5)
-
Step 600
600
#BA4557
oklch(55.5% 0.151 14.3)
-
Step 700
700
#A03647
oklch(49% 0.14 14.5)
-
Step 800
800
#822E3A
oklch(42.7% 0.116 15)
-
Step 900
900
#692A32
oklch(37.7% 0.09 14.7)
-
Step 950
950 (this color)
#421D21
oklch(28.5% 0.057 14.6)
#421D21 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) | #252421 | 0.062 |
| Deuteranopia (no green cones) | #2E2B20 | 0.057 |
| Tritanopia (no blue cones) | #48181F | 0.016 |
| Achromatopsia (no color) | #282828 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #421D21
#421D21
oklch(28.5% 0.057 14.6)
- #003131
#003131
oklch(28.4% 0.048 194.8)
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 #421D21, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.044
- Dark Brown #341C02 ΔE 0.057
- Mahogany #4A0100 ΔE 0.058
- Deep Brown #410200 ΔE 0.063
- Jet #212529 ΔE 0.067
- Dark Maroon #3C0008 ΔE 0.069
- Dark Plum #3F012C ΔE 0.072
- Aubergine #3D0734 ΔE 0.072
Use #421D21 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.