#421F27
Closest named color: Chocolate Brown (#411900). oklch(29.1% 0.055 6.5), rgb(66, 31, 39).
Aa
White text reads best on this color (14.41:1).
About this color
#421F27 is a dark, muted red. In OKLCH its lightness is 29%, its chroma 0.055 and its hue 7°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.053 away. White text reads best on it, at 14.41:1.
| Hue family | Reds |
| Lightness | dark (29%) |
| Chroma | muted (0.055) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.45:1 |
| White text | 14.41:1 |
Values
| HEX | #421F27 |
| RGB | rgb(66, 31, 39) |
| HSL | hsl(346, 36%, 19%) |
| OKLCH | oklch(29.1% 0.055 6.5) |
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 #421F27 | 14.41:1 | AAA | Lc -103.9 | Preferred for body text |
| Black text on #421F27 | 1.45:1 | Fails | Lc 0.0 | Not readable |
| #421F27 text on white | 14.41:1 | AAA | Lc 101.0 | Preferred for body text |
| #421F27 text on black | 1.45:1 | 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
#FBF3F4
oklch(97.1% 0.009 8.5)
-
Step 100
100
#F6E5E8
oklch(93.6% 0.019 5.3)
-
Step 200
200
#EFD0D5
oklch(88.5% 0.035 6.8)
-
Step 300
300
#E6B0BA
oklch(80.9% 0.064 6.2)
-
Step 400
400
#D88596
oklch(70.8% 0.104 6.8)
-
Step 500
500
#CB647C
oklch(63.2% 0.132 6.9)
-
Step 600
600
#B64865
oklch(55.6% 0.144 6.8)
-
Step 700
700
#9C3954
oklch(49.1% 0.134 6.7)
-
Step 800
800
#7F3045
oklch(42.7% 0.111 6.6)
-
Step 900
900
#662B3A
oklch(37.6% 0.086 6.2)
-
Step 950
950 (this color)
#421F27
oklch(29.1% 0.055 6.5)
#421F27 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) | #252627 | 0.060 |
| Deuteranopia (no green cones) | #2E2C26 | 0.055 |
| Tritanopia (no blue cones) | #471C22 | 0.014 |
| Achromatopsia (no color) | #2A2A2A | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #421F27
#421F27
oklch(29.1% 0.055 6.5)
- #00332F
#00332F
oklch(28.9% 0.051 186.5)
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 #421F27, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.053
- Dark Brown #341C02 ΔE 0.065
- Jet #212529 ΔE 0.066
- Space Cadet #2B2D42 ΔE 0.066
- Mahogany #4A0100 ΔE 0.067
- Aubergine #3D0734 ΔE 0.069
- Dark Plum #3F012C ΔE 0.071
- Deep Brown #410200 ΔE 0.072
Use #421F27 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.