#42172D
Closest named color: Aubergine (#3D0734). oklch(27.9% 0.073 351), rgb(66, 23, 45).
Aa
White text reads best on this color (15.08:1).
About this color
#42172D is a dark, moderately saturated red. In OKLCH its lightness is 28%, its chroma 0.073 and its hue 351°. Its hue sits on the warm side of the wheel. The nearest named color is Aubergine (#3D0734), ΔE 0.043 away. White text reads best on it, at 15.08:1.
| Hue family | Reds |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.073) |
| Temperature | warm |
| Nearest name | Aubergine (#3D0734) |
| Black text | 1.39:1 |
| White text | 15.08:1 |
Values
| HEX | #42172D |
| RGB | rgb(66, 23, 45) |
| HSL | hsl(329, 48%, 17%) |
| OKLCH | oklch(27.9% 0.073 351) |
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 #42172D | 15.08:1 | AAA | Lc -104.5 | Preferred for body text |
| Black text on #42172D | 1.39:1 | Fails | Lc 0.0 | Not readable |
| #42172D text on white | 15.08:1 | AAA | Lc 101.6 | Preferred for body text |
| #42172D text on black | 1.39:1 | 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
#FCF2F6
oklch(97% 0.012 351)
-
Step 100
100
#F8E3EC
oklch(93.5% 0.026 349.8)
-
Step 200
200
#F3CDDD
oklch(88.5% 0.047 350.9)
-
Step 300
300
#ECAAC7
oklch(80.8% 0.085 351.1)
-
Step 400
400
#E07AAB
oklch(70.7% 0.138 351)
-
Step 500
500
#D45396
oklch(63% 0.176 351.1)
-
Step 600
600
#BF3281
oklch(55.6% 0.191 350.9)
-
Step 700
700
#A4236D
oklch(49.1% 0.177 350.8)
-
Step 800
800
#862059
oklch(42.8% 0.147 351)
-
Step 900
900
#6C2149
oklch(37.7% 0.115 351.1)
-
Step 950
950 (this color)
#42172D
oklch(27.9% 0.073 351)
#42172D 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) | #1C212E | 0.080 |
| Deuteranopia (no green cones) | #28292C | 0.072 |
| Tritanopia (no blue cones) | #471520 | 0.025 |
| Achromatopsia (no color) | #262626 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42172D
#42172D
oklch(27.9% 0.073 351)
- #003125
#003125
oklch(27.9% 0.055 171.2)
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 #42172D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aubergine #3D0734 ΔE 0.043
- Dark Plum #3F012C ΔE 0.046
- Eggplant #380835 ΔE 0.050
- Eggplant Purple #430541 ΔE 0.055
- Deep Violet #490648 ΔE 0.063
- Dark Purple #35063E ΔE 0.066
- Mahogany #4A0100 ΔE 0.069
- Dark Maroon #3C0008 ΔE 0.070
Use #42172D 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.