#400427
Closest named color: Dark Plum (#3F012C). oklch(24.9% 0.096 350.9), rgb(64, 4, 39).
Aa
White text reads best on this color (16.60:1).
About this color
#400427 is a very dark, moderately saturated red. In OKLCH its lightness is 25%, its chroma 0.096 and its hue 351°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Plum (#3F012C), ΔE 0.013 away. White text reads best on it, at 16.60:1.
| Hue family | Reds |
| Lightness | very dark (25%) |
| Chroma | moderately saturated (0.096) |
| Temperature | warm |
| Nearest name | Dark Plum (#3F012C) |
| Black text | 1.26:1 |
| White text | 16.60:1 |
Values
| HEX | #400427 |
| RGB | rgb(64, 4, 39) |
| HSL | hsl(325, 88%, 13%) |
| OKLCH | oklch(24.9% 0.096 350.9) |
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 #400427 | 16.60:1 | AAA | Lc -105.3 | Preferred for body text |
| Black text on #400427 | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #400427 text on white | 16.60:1 | AAA | Lc 102.7 | Preferred for body text |
| #400427 text on black | 1.26:1 | 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
#FEF1F7
oklch(97% 0.016 347.6)
-
Step 100
100
#FCE1EC
oklch(93.5% 0.033 351.2)
-
Step 200
200
#FBC9DE
oklch(88.5% 0.063 351.4)
-
Step 300
300
#F9A2CA
oklch(81% 0.114 350.8)
-
Step 400
400
#F169AE
oklch(70.7% 0.182 351.1)
-
Step 500
500
#E8319B
oklch(63.2% 0.233 350.9)
-
Step 600
600
#CC0084
oklch(55.6% 0.231 350.8)
-
Step 700
700
#AD006F
oklch(49.2% 0.205 350.9)
-
Step 800
800
#8F005B
oklch(42.8% 0.178 350.9)
-
Step 900
900
#77064B
oklch(37.8% 0.152 351.2)
-
Step 950
950 (this color)
#400427
oklch(24.9% 0.096 350.9)
#400427 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) | #0F1728 | 0.110 |
| Deuteranopia (no green cones) | #212226 | 0.095 |
| Tritanopia (no blue cones) | #460015 | 0.036 |
| Achromatopsia (no color) | #1E1E1E | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #400427
#400427
oklch(24.9% 0.096 350.9)
- #00291E
#00291E
oklch(25% 0.049 170.2)
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 #400427, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Plum #3F012C ΔE 0.013
- Aubergine #3D0734 ΔE 0.026
- Eggplant #380835 ΔE 0.034
- Eggplant Purple #430541 ΔE 0.049
- Dark Maroon #3C0008 ΔE 0.054
- Dark Purple #35063E ΔE 0.054
- Deep Purple #36013F ΔE 0.057
- Deep Violet #490648 ΔE 0.063
Use #400427 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.