#421B17
Closest named color: Chocolate Brown (#411900). oklch(27.9% 0.062 27.7), rgb(66, 27, 23).
Aa
White text reads best on this color (14.99:1).
About this color
#421B17 is a dark, muted red. In OKLCH its lightness is 28%, its chroma 0.062 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.029 away. White text reads best on it, at 14.99:1.
| Hue family | Reds |
| Lightness | dark (28%) |
| Chroma | muted (0.062) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.40:1 |
| White text | 14.99:1 |
Values
| HEX | #421B17 |
| RGB | rgb(66, 27, 23) |
| HSL | hsl(6, 48%, 17%) |
| OKLCH | oklch(27.9% 0.062 27.7) |
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 #421B17 | 14.99:1 | AAA | Lc -104.4 | Preferred for body text |
| Black text on #421B17 | 1.40:1 | Fails | Lc 0.0 | Not readable |
| #421B17 text on white | 14.99:1 | AAA | Lc 101.6 | Preferred for body text |
| #421B17 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
#F8E5E2
oklch(93.6% 0.021 28.3)
-
Step 200
200
#F3D0CB
oklch(88.6% 0.04 27.5)
-
Step 300
300
#ECAFA7
oklch(80.8% 0.073 27.2)
-
Step 400
400
#E08378
oklch(70.7% 0.117 27.5)
-
Step 500
500
#D46055
oklch(63% 0.149 27.6)
-
Step 600
600
#C0433A
oklch(55.6% 0.162 27.7)
-
Step 700
700
#A5332C
oklch(49% 0.151 27.6)
-
Step 800
800
#862C26
oklch(42.7% 0.125 27.4)
-
Step 900
900
#6C2923
oklch(37.7% 0.097 27.7)
-
Step 950
950 (this color)
#421B17
oklch(27.9% 0.062 27.7)
#421B17 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) | #252216 | 0.063 |
| Deuteranopia (no green cones) | #2E2A16 | 0.060 |
| Tritanopia (no blue cones) | #49141A | 0.023 |
| Achromatopsia (no color) | #272727 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #421B17
#421B17
oklch(27.9% 0.062 27.7)
- #002F35
#002F35
oklch(27.9% 0.048 208.1)
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 #421B17, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.029
- Dark Brown #341C02 ΔE 0.045
- Mahogany #4A0100 ΔE 0.048
- Deep Brown #410200 ΔE 0.052
- Dark Maroon #3C0008 ΔE 0.062
- Jet #212529 ΔE 0.071
- Dark Plum #3F012C ΔE 0.079
- Burgundy #610023 ΔE 0.079
Use #421B17 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.