#421B19
Closest named color: Chocolate Brown (#411900). oklch(27.9% 0.061 24.8), rgb(66, 27, 25).
Aa
White text reads best on this color (14.97:1).
About this color
#421B19 is a dark, muted red. In OKLCH its lightness is 28%, its chroma 0.061 and its hue 25°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.032 away. White text reads best on it, at 14.97:1.
| Hue family | Reds |
| Lightness | dark (28%) |
| Chroma | muted (0.061) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.40:1 |
| White text | 14.97:1 |
Values
| HEX | #421B19 |
| RGB | rgb(66, 27, 25) |
| HSL | hsl(3, 45%, 18%) |
| OKLCH | oklch(27.9% 0.061 24.8) |
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 #421B19 | 14.97:1 | AAA | Lc -104.4 | Preferred for body text |
| Black text on #421B19 | 1.40:1 | Fails | Lc 0.0 | Not readable |
| #421B19 text on white | 14.97:1 | AAA | Lc 101.6 | Preferred for body text |
| #421B19 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
#FCF3F2
oklch(97.1% 0.01 25.1)
-
Step 100
100
#F8E5E3
oklch(93.7% 0.021 24.8)
-
Step 200
200
#F3D0CC
oklch(88.6% 0.04 25.6)
-
Step 300
300
#ECAFA9
oklch(80.9% 0.072 25.2)
-
Step 400
400
#E0837C
oklch(70.8% 0.116 25)
-
Step 500
500
#D4605B
oklch(63.1% 0.148 24.7)
-
Step 600
600
#BF4341
oklch(55.6% 0.16 24.8)
-
Step 700
700
#A53333
oklch(49.1% 0.15 24.5)
-
Step 800
800
#862C2A
oklch(42.8% 0.124 25.1)
-
Step 900
900
#6C2926
oklch(37.8% 0.097 25.3)
-
Step 950
950 (this color)
#421B19
oklch(27.9% 0.061 24.8)
#421B19 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) | #242219 | 0.065 |
| Deuteranopia (no green cones) | #2E2A18 | 0.060 |
| Tritanopia (no blue cones) | #49151B | 0.021 |
| Achromatopsia (no color) | #272727 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #421B19
#421B19
oklch(27.9% 0.061 24.8)
- #002F34
#002F34
oklch(27.9% 0.048 206)
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 #421B19, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.032
- Dark Brown #341C02 ΔE 0.047
- Mahogany #4A0100 ΔE 0.049
- Deep Brown #410200 ΔE 0.053
- Dark Maroon #3C0008 ΔE 0.062
- Jet #212529 ΔE 0.070
- Dark Plum #3F012C ΔE 0.076
- Burgundy #610023 ΔE 0.078
Use #421B19 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.