#420F0B
Closest named color: Deep Brown (#410200). oklch(25.7% 0.08 28.4), rgb(66, 15, 11).
Aa
White text reads best on this color (16.09:1).
About this color
#420F0B is a dark, moderately saturated red. In OKLCH its lightness is 26%, its chroma 0.080 and its hue 28°. 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 16.09:1.
| Hue family | Reds |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.080) |
| Temperature | warm |
| Nearest name | Deep Brown (#410200) |
| Black text | 1.30:1 |
| White text | 16.09:1 |
Values
| HEX | #420F0B |
| RGB | rgb(66, 15, 11) |
| HSL | hsl(4, 71%, 15%) |
| OKLCH | oklch(25.7% 0.08 28.4) |
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 #420F0B | 16.09:1 | AAA | Lc -105.1 | Preferred for body text |
| Black text on #420F0B | 1.30:1 | Fails | Lc 0.0 | Not readable |
| #420F0B text on white | 16.09:1 | AAA | Lc 102.5 | Preferred for body text |
| #420F0B text on black | 1.30:1 | 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
#FCE4E0
oklch(93.7% 0.027 28.9)
-
Step 200
200
#FACDC6
oklch(88.5% 0.052 28.5)
-
Step 300
300
#F8AA9E
oklch(81% 0.094 29)
-
Step 400
400
#F07869
oklch(70.8% 0.151 28.7)
-
Step 500
500
#E74C40
oklch(63.1% 0.193 28.3)
-
Step 600
600
#D2221D
oklch(55.6% 0.209 28.4)
-
Step 700
700
#B50E0F
oklch(49% 0.194 28.3)
-
Step 800
800
#931411
oklch(42.6% 0.161 28.3)
-
Step 900
900
#761C16
oklch(37.7% 0.125 28.5)
-
Step 950
950 (this color)
#420F0B
oklch(25.7% 0.08 28.4)
#420F0B 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) | #1E1A0A | 0.083 |
| Deuteranopia (no green cones) | #2A2509 | 0.077 |
| Tritanopia (no blue cones) | #49020E | 0.025 |
| Achromatopsia (no color) | #212121 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #420F0B
#420F0B
oklch(25.7% 0.08 28.4)
- #00292F
#00292F
oklch(25.7% 0.044 209.6)
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 #420F0B, 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 0.025
- Chocolate Brown #411900 ΔE 0.031
- Dark Maroon #3C0008 ΔE 0.036
- Dark Brown #341C02 ΔE 0.048
- Dark Plum #3F012C ΔE 0.072
- Aubergine #3D0734 ΔE 0.081
- Burgundy #610023 ΔE 0.081
Use #420F0B 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.