#420D10
Closest named color: Deep Brown (#410200). oklch(25.6% 0.081 22.1), rgb(66, 13, 16).
Aa
White text reads best on this color (16.19:1).
About this color
#420D10 is a dark, moderately saturated red. In OKLCH its lightness is 26%, its chroma 0.081 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Brown (#410200), ΔE 0.025 away. White text reads best on it, at 16.19:1.
| Hue family | Reds |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.081) |
| Temperature | warm |
| Nearest name | Deep Brown (#410200) |
| Black text | 1.29:1 |
| White text | 16.19:1 |
Values
| HEX | #420D10 |
| RGB | rgb(66, 13, 16) |
| HSL | hsl(357, 67%, 15%) |
| OKLCH | oklch(25.6% 0.081 22.1) |
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 #420D10 | 16.19:1 | AAA | Lc -105.2 | Preferred for body text |
| Black text on #420D10 | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #420D10 text on white | 16.19:1 | AAA | Lc 102.5 | Preferred for body text |
| #420D10 text on black | 1.29:1 | 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
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FCE3E1
oklch(93.6% 0.028 23.2)
-
Step 200
200
#FBCCC9
oklch(88.5% 0.054 22.5)
-
Step 300
300
#F9A8A5
oklch(80.9% 0.096 21.7)
-
Step 400
400
#F17574
oklch(70.7% 0.153 22.2)
-
Step 500
500
#E84850
oklch(63.1% 0.196 22.1)
-
Step 600
600
#D31934
oklch(55.5% 0.213 22.1)
-
Step 700
700
#B60027
oklch(49% 0.197 22)
-
Step 800
800
#940D21
oklch(42.6% 0.164 22.2)
-
Step 900
900
#771920
oklch(37.7% 0.128 22.2)
-
Step 950
950 (this color)
#420D10
oklch(25.6% 0.081 22.1)
#420D10 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) | #1C1910 | 0.087 |
| Deuteranopia (no green cones) | #29250E | 0.082 |
| Tritanopia (no blue cones) | #49010F | 0.022 |
| Achromatopsia (no color) | #212121 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #420D10
#420D10
oklch(25.6% 0.081 22.1)
- #00292C
#00292C
oklch(25.6% 0.044 202.3)
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 #420D10, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Brown #410200 ΔE 0.025
- Mahogany #4A0100 ΔE 0.027
- Dark Maroon #3C0008 ΔE 0.032
- Chocolate Brown #411900 ΔE 0.040
- Dark Brown #341C02 ΔE 0.055
- Dark Plum #3F012C ΔE 0.063
- Aubergine #3D0734 ΔE 0.072
- Burgundy #610023 ΔE 0.078
Use #420D10 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.