#421A1B
Closest named color: Chocolate Brown (#411900). oklch(27.8% 0.062 20.5), rgb(66, 26, 27).
Aa
White text reads best on this color (15.05:1).
About this color
#421A1B is a dark, muted red. In OKLCH its lightness is 28%, its chroma 0.062 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.036 away. White text reads best on it, at 15.05:1.
| Hue family | Reds |
| Lightness | dark (28%) |
| Chroma | muted (0.062) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.39:1 |
| White text | 15.05:1 |
Values
| HEX | #421A1B |
| RGB | rgb(66, 26, 27) |
| HSL | hsl(358, 43%, 18%) |
| OKLCH | oklch(27.8% 0.062 20.5) |
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 #421A1B | 15.05:1 | AAA | Lc -104.5 | Preferred for body text |
| Black text on #421A1B | 1.39:1 | Fails | Lc 0.0 | Not readable |
| #421A1B text on white | 15.05:1 | AAA | Lc 101.6 | Preferred for body text |
| #421A1B text on black | 1.39:1 | 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
#FCF3F3
oklch(97.1% 0.01 17.3)
-
Step 100
100
#F8E5E4
oklch(93.7% 0.021 21.2)
-
Step 200
200
#F3CFCE
oklch(88.5% 0.041 19.8)
-
Step 300
300
#EDAEAD
oklch(80.9% 0.074 19.9)
-
Step 400
400
#E18181
oklch(70.7% 0.119 20.5)
-
Step 500
500
#D55E62
oklch(63.1% 0.15 20.4)
-
Step 600
600
#C04049
oklch(55.6% 0.163 20.3)
-
Step 700
700
#A6313A
oklch(49.2% 0.152 20.6)
-
Step 800
800
#862A30
oklch(42.6% 0.125 20.6)
-
Step 900
900
#6C282B
oklch(37.7% 0.097 20.4)
-
Step 950
950 (this color)
#421A1B
oklch(27.8% 0.062 20.5)
#421A1B 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) | #23211B | 0.067 |
| Deuteranopia (no green cones) | #2D2A1A | 0.063 |
| Tritanopia (no blue cones) | #48141B | 0.018 |
| Achromatopsia (no color) | #262626 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #421A1B
#421A1B
oklch(27.8% 0.062 20.5)
- #002F32
#002F32
oklch(27.8% 0.047 201.5)
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 #421A1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.036
- Mahogany #4A0100 ΔE 0.048
- Dark Brown #341C02 ΔE 0.051
- Deep Brown #410200 ΔE 0.053
- Dark Maroon #3C0008 ΔE 0.060
- Jet #212529 ΔE 0.071
- Dark Plum #3F012C ΔE 0.071
- Aubergine #3D0734 ΔE 0.074
Use #421A1B 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.