#421F1F
Closest named color: Chocolate Brown (#411900). oklch(28.8% 0.054 21), rgb(66, 31, 31).
Aa
White text reads best on this color (14.50:1).
About this color
#421F1F is a dark, muted red. In OKLCH its lightness is 29%, its chroma 0.054 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.040 away. White text reads best on it, at 14.50:1.
| Hue family | Reds |
| Lightness | dark (29%) |
| Chroma | muted (0.054) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.44:1 |
| White text | 14.50:1 |
Values
| HEX | #421F1F |
| RGB | rgb(66, 31, 31) |
| HSL | hsl(0, 36%, 19%) |
| OKLCH | oklch(28.8% 0.054 21) |
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 #421F1F | 14.50:1 | AAA | Lc -104.0 | Preferred for body text |
| Black text on #421F1F | 1.44:1 | Fails | Lc 0.0 | Not readable |
| #421F1F text on white | 14.50:1 | AAA | Lc 101.1 | Preferred for body text |
| #421F1F text on black | 1.44:1 | 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
#FBF3F3
oklch(97% 0.009 17.3)
-
Step 100
100
#F6E5E4
oklch(93.5% 0.019 21.6)
-
Step 200
200
#F0D0CF
oklch(88.4% 0.036 20)
-
Step 300
300
#E7B1AF
oklch(80.9% 0.063 21)
-
Step 400
400
#D98685
oklch(70.7% 0.102 20.7)
-
Step 500
500
#CD6566
oklch(63.1% 0.132 21)
-
Step 600
600
#B84A4E
oklch(55.6% 0.143 20.8)
-
Step 700
700
#9E3B3F
oklch(49.2% 0.132 21)
-
Step 800
800
#803134
oklch(42.6% 0.11 20.7)
-
Step 900
900
#682C2D
oklch(37.7% 0.086 21.1)
-
Step 950
950 (this color)
#421F1F
oklch(28.8% 0.054 21)
#421F1F 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) | #27251F | 0.057 |
| Deuteranopia (no green cones) | #2F2C1E | 0.054 |
| Tritanopia (no blue cones) | #481A1F | 0.017 |
| Achromatopsia (no color) | #292929 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #421F1F
#421F1F
oklch(28.8% 0.054 21)
- #003235
#003235
oklch(28.9% 0.049 201.2)
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 #421F1F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.040
- Dark Brown #341C02 ΔE 0.053
- Mahogany #4A0100 ΔE 0.060
- Deep Brown #410200 ΔE 0.065
- Jet #212529 ΔE 0.066
- Dark Maroon #3C0008 ΔE 0.073
- Space Cadet #2B2D42 ΔE 0.074
- Burgundy #610023 ΔE 0.078
Use #421F1F 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.