#421B1F
Closest named color: Chocolate Brown (#411900). oklch(28.1% 0.061 15.4), rgb(66, 27, 31).
Aa
White text reads best on this color (14.91:1).
About this color
#421B1F is a dark, muted red. In OKLCH its lightness is 28%, its chroma 0.061 and its hue 15°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.042 away. White text reads best on it, at 14.91:1.
| Hue family | Reds |
| Lightness | dark (28%) |
| Chroma | muted (0.061) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.40:1 |
| White text | 14.91:1 |
Values
| HEX | #421B1F |
| RGB | rgb(66, 27, 31) |
| HSL | hsl(354, 42%, 18%) |
| OKLCH | oklch(28.1% 0.061 15.4) |
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 #421B1F | 14.91:1 | AAA | Lc -104.4 | Preferred for body text |
| Black text on #421B1F | 1.40:1 | Fails | Lc 0.0 | Not readable |
| #421B1F text on white | 14.91:1 | AAA | Lc 101.5 | Preferred for body text |
| #421B1F text on black | 1.40:1 | 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
#F8E5E5
oklch(93.7% 0.021 17.5)
-
Step 200
200
#F2CFD0
oklch(88.4% 0.039 16)
-
Step 300
300
#EBAEB1
oklch(80.8% 0.072 15.5)
-
Step 400
400
#DF8289
oklch(70.8% 0.115 15.6)
-
Step 500
500
#D35F6C
oklch(63.2% 0.147 15.4)
-
Step 600
600
#BE4154
oklch(55.6% 0.16 15.1)
-
Step 700
700
#A33244
oklch(49% 0.148 15.3)
-
Step 800
800
#852B38
oklch(42.8% 0.123 15.6)
-
Step 900
900
#6B2830
oklch(37.7% 0.096 15.7)
-
Step 950
950 (this color)
#421B1F
oklch(28.1% 0.061 15.4)
#421B1F 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) | #23221F | 0.066 |
| Deuteranopia (no green cones) | #2D2A1E | 0.061 |
| Tritanopia (no blue cones) | #48161D | 0.016 |
| Achromatopsia (no color) | #272727 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #421B1F
#421B1F
oklch(28.1% 0.061 15.4)
- #003030
#003030
oklch(28% 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 #421B1F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.042
- Mahogany #4A0100 ΔE 0.053
- Dark Brown #341C02 ΔE 0.055
- Deep Brown #410200 ΔE 0.058
- Dark Maroon #3C0008 ΔE 0.063
- Dark Plum #3F012C ΔE 0.069
- Jet #212529 ΔE 0.069
- Aubergine #3D0734 ΔE 0.070
Use #421B1F 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.