#420E03
Closest named color: Deep Brown (#410200). oklch(25.5% 0.083 34.8), rgb(66, 14, 3).
Aa
White text reads best on this color (16.20:1).
About this color
#420E03 is a dark, moderately saturated red. In OKLCH its lightness is 25%, its chroma 0.083 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Brown (#410200), ΔE 0.021 away. White text reads best on it, at 16.20:1.
| Hue family | Reds |
| Lightness | dark (25%) |
| Chroma | moderately saturated (0.083) |
| Temperature | warm |
| Nearest name | Deep Brown (#410200) |
| Black text | 1.29:1 |
| White text | 16.20:1 |
Values
| HEX | #420E03 |
| RGB | rgb(66, 14, 3) |
| HSL | hsl(10, 91%, 14%) |
| OKLCH | oklch(25.5% 0.083 34.8) |
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 #420E03 | 16.20:1 | AAA | Lc -105.2 | Preferred for body text |
| Black text on #420E03 | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #420E03 text on white | 16.20:1 | AAA | Lc 102.5 | Preferred for body text |
| #420E03 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
#FEF3F0
oklch(97.2% 0.013 35.7)
-
Step 100
100
#FCE4DD
oklch(93.6% 0.028 36.9)
-
Step 200
200
#FBCDC1
oklch(88.5% 0.055 35)
-
Step 300
300
#F9AA96
oklch(81% 0.098 34.8)
-
Step 400
400
#F1785A
oklch(70.7% 0.156 35.1)
-
Step 500
500
#E94C24
oklch(63.2% 0.2 34.8)
-
Step 600
600
#CC3300
oklch(55.6% 0.195 34.9)
-
Step 700
700
#AD2900
oklch(49.1% 0.173 34.7)
-
Step 800
800
#8F2000
oklch(42.7% 0.151 34.7)
-
Step 900
900
#771B02
oklch(37.6% 0.13 34.8)
-
Step 950
950 (this color)
#420E03
oklch(25.5% 0.083 34.8)
#420E03 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) | #1E1902 | 0.085 |
| Deuteranopia (no green cones) | #2A2501 | 0.079 |
| Tritanopia (no blue cones) | #4A000C | 0.032 |
| Achromatopsia (no color) | #202020 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #420E03
#420E03
oklch(25.5% 0.083 34.8)
- #002830
#002830
oklch(25.5% 0.045 214.5)
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 #420E03, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Brown #410200 ΔE 0.021
- Mahogany #4A0100 ΔE 0.023
- Chocolate Brown #411900 ΔE 0.027
- Dark Maroon #3C0008 ΔE 0.037
- Dark Brown #341C02 ΔE 0.045
- Dark Plum #3F012C ΔE 0.081
- Burgundy #610023 ΔE 0.086
- Aubergine #3D0734 ΔE 0.090
Use #420E03 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.