#420509
Closest named color: Deep Brown (#410200). oklch(24.5% 0.09 23.8), rgb(66, 5, 9).
Aa
White text reads best on this color (16.70:1).
About this color
#420509 is a very dark, moderately saturated red. In OKLCH its lightness is 25%, its chroma 0.090 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Brown (#410200), ΔE 0.014 away. White text reads best on it, at 16.70:1.
| Hue family | Reds |
| Lightness | very dark (25%) |
| Chroma | moderately saturated (0.090) |
| Temperature | warm |
| Nearest name | Deep Brown (#410200) |
| Black text | 1.25:1 |
| White text | 16.70:1 |
Values
| HEX | #420509 |
| RGB | rgb(66, 5, 9) |
| HSL | hsl(356, 86%, 14%) |
| OKLCH | oklch(24.5% 0.09 23.8) |
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 #420509 | 16.70:1 | AAA | Lc -105.3 | Preferred for body text |
| Black text on #420509 | 1.25:1 | Fails | Lc 0.0 | Not readable |
| #420509 text on white | 16.70:1 | AAA | Lc 102.7 | Preferred for body text |
| #420509 text on black | 1.25:1 | 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
#FFF2F1
oklch(97.1% 0.014 22.8)
-
Step 100
100
#FEE2E0
oklch(93.5% 0.031 22.6)
-
Step 200
200
#FECBC6
oklch(88.5% 0.059 24.8)
-
Step 300
300
#FEA59F
oklch(80.9% 0.107 23.9)
-
Step 400
400
#F96E6B
oklch(70.7% 0.171 23.7)
-
Step 500
500
#F13943
oklch(63.1% 0.219 23.7)
-
Step 600
600
#D80029
oklch(55.6% 0.225 23.7)
-
Step 700
700
#B70021
oklch(49.2% 0.199 23.8)
-
Step 800
800
#970019
oklch(42.6% 0.172 23.9)
-
Step 900
900
#7C0D18
oklch(37.7% 0.142 23.7)
-
Step 950
950 (this color)
#420509
oklch(24.5% 0.09 23.8)
#420509 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) | #181509 | 0.100 |
| Deuteranopia (no green cones) | #272307 | 0.092 |
| Tritanopia (no blue cones) | #4A0007 | 0.019 |
| Achromatopsia (no color) | #1E1E1E | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #420509
#420509
oklch(24.5% 0.09 23.8)
- #00262A
#00262A
oklch(24.5% 0.042 205.3)
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 #420509, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Brown #410200 ΔE 0.014
- Dark Maroon #3C0008 ΔE 0.021
- Mahogany #4A0100 ΔE 0.021
- Chocolate Brown #411900 ΔE 0.047
- Dark Brown #341C02 ΔE 0.061
- Dark Plum #3F012C ΔE 0.066
- Aubergine #3D0734 ΔE 0.078
- Burgundy #610023 ΔE 0.082
Use #420509 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.