#420B10
Closest named color: Deep Brown (#410200). oklch(25.3% 0.083 20.8), rgb(66, 11, 16).
Aa
White text reads best on this color (16.31:1).
About this color
#420B10 is a dark, moderately saturated red. In OKLCH its lightness is 25%, its chroma 0.083 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Brown (#410200), ΔE 0.024 away. White text reads best on it, at 16.31:1.
| Hue family | Reds |
| Lightness | dark (25%) |
| Chroma | moderately saturated (0.083) |
| Temperature | warm |
| Nearest name | Deep Brown (#410200) |
| Black text | 1.28:1 |
| White text | 16.31:1 |
Values
| HEX | #420B10 |
| RGB | rgb(66, 11, 16) |
| HSL | hsl(355, 71%, 15%) |
| OKLCH | oklch(25.3% 0.083 20.8) |
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 #420B10 | 16.31:1 | AAA | Lc -105.2 | Preferred for body text |
| Black text on #420B10 | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #420B10 text on white | 16.31:1 | AAA | Lc 102.6 | Preferred for body text |
| #420B10 text on black | 1.28:1 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FDE3E2
oklch(93.7% 0.029 20.3)
-
Step 200
200
#FCCCCA
oklch(88.6% 0.055 21)
-
Step 300
300
#FAA7A5
oklch(80.9% 0.099 21)
-
Step 400
400
#F37375
oklch(70.7% 0.158 21)
-
Step 500
500
#EA4452
oklch(63.1% 0.202 20.7)
-
Step 600
600
#D50D36
oklch(55.5% 0.219 20.8)
-
Step 700
700
#B6002B
oklch(49.1% 0.197 20.8)
-
Step 800
800
#960523
oklch(42.8% 0.169 20.8)
-
Step 900
900
#781621
oklch(37.7% 0.131 20.8)
-
Step 950
950 (this color)
#420B10
oklch(25.3% 0.083 20.8)
#420B10 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) | #1B1810 | 0.090 |
| Deuteranopia (no green cones) | #29240E | 0.083 |
| Tritanopia (no blue cones) | #49000D | 0.020 |
| Achromatopsia (no color) | #202020 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #420B10
#420B10
oklch(25.3% 0.083 20.8)
- #00282B
#00282B
oklch(25.2% 0.043 202.4)
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 #420B10, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Brown #410200 ΔE 0.024
- Mahogany #4A0100 ΔE 0.026
- Dark Maroon #3C0008 ΔE 0.029
- Chocolate Brown #411900 ΔE 0.043
- Dark Brown #341C02 ΔE 0.058
- Dark Plum #3F012C ΔE 0.061
- Aubergine #3D0734 ΔE 0.071
- Eggplant #380835 ΔE 0.077
Use #420B10 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.