#420F15
Closest named color: Mahogany (#4A0100). oklch(25.9% 0.078 17.9), rgb(66, 15, 21).
Aa
White text reads best on this color (16.02:1).
About this color
#420F15 is a dark, moderately saturated red. In OKLCH its lightness is 26%, its chroma 0.078 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Mahogany (#4A0100), ΔE 0.032 away. White text reads best on it, at 16.02:1.
| Hue family | Reds |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.078) |
| Temperature | warm |
| Nearest name | Mahogany (#4A0100) |
| Black text | 1.31:1 |
| White text | 16.02:1 |
Values
| HEX | #420F15 |
| RGB | rgb(66, 15, 21) |
| HSL | hsl(353, 63%, 16%) |
| OKLCH | oklch(25.9% 0.078 17.9) |
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 #420F15 | 16.02:1 | AAA | Lc -105.1 | Preferred for body text |
| Black text on #420F15 | 1.31:1 | Fails | Lc 0.0 | Not readable |
| #420F15 text on white | 16.02:1 | AAA | Lc 102.4 | Preferred for body text |
| #420F15 text on black | 1.31:1 | 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
#FBE3E3
oklch(93.5% 0.026 17.6)
-
Step 200
200
#FACCCC
oklch(88.5% 0.052 18.2)
-
Step 300
300
#F7A8AA
oklch(80.9% 0.094 17.7)
-
Step 400
400
#EE767D
oklch(70.6% 0.148 18)
-
Step 500
500
#E54B5D
oklch(63.2% 0.189 17.8)
-
Step 600
600
#D02043
oklch(55.5% 0.206 17.8)
-
Step 700
700
#B40C35
oklch(49.2% 0.192 17.9)
-
Step 800
800
#92132C
oklch(42.7% 0.159 18)
-
Step 900
900
#751B28
oklch(37.7% 0.123 17.6)
-
Step 950
950 (this color)
#420F15
oklch(25.9% 0.078 17.9)
#420F15 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) | #1C1B15 | 0.086 |
| Deuteranopia (no green cones) | #292514 | 0.078 |
| Tritanopia (no blue cones) | #490412 | 0.020 |
| Achromatopsia (no color) | #212121 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #420F15
#420F15
oklch(25.9% 0.078 17.9)
- #002A2B
#002A2B
oklch(25.9% 0.044 197.2)
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 #420F15, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mahogany #4A0100 ΔE 0.032
- Deep Brown #410200 ΔE 0.033
- Dark Maroon #3C0008 ΔE 0.036
- Chocolate Brown #411900 ΔE 0.042
- Dark Brown #341C02 ΔE 0.057
- Dark Plum #3F012C ΔE 0.058
- Aubergine #3D0734 ΔE 0.066
- Eggplant #380835 ΔE 0.072
Use #420F15 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.