#402557
Closest named color: Plum Purple (#4E0550). oklch(32.4% 0.09 307), rgb(64, 37, 87).
Aa
White text reads best on this color (12.96:1).
About this color
#402557 is a dark, moderately saturated purple. In OKLCH its lightness is 32%, its chroma 0.090 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Plum Purple (#4E0550), ΔE 0.062 away. White text reads best on it, at 12.96:1.
| Hue family | Purples |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.090) |
| Temperature | in between |
| Nearest name | Plum Purple (#4E0550) |
| Black text | 1.62:1 |
| White text | 12.96:1 |
Values
| HEX | #402557 |
| RGB | rgb(64, 37, 87) |
| HSL | hsl(272, 40%, 24%) |
| OKLCH | oklch(32.4% 0.09 307) |
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 #402557 | 12.96:1 | AAA | Lc -102.3 | Preferred for body text |
| Black text on #402557 | 1.62:1 | Fails | Lc 0.0 | Not readable |
| #402557 text on white | 12.96:1 | AAA | Lc 98.9 | Preferred for body text |
| #402557 text on black | 1.62:1 | 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 900.
-
Step 50
50
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EDE7F4
oklch(93.6% 0.018 306.7)
-
Step 200
200
#DFD3ED
oklch(88.4% 0.037 306.4)
-
Step 300
300
#CCB6E3
oklch(81% 0.067 307.1)
-
Step 400
400
#B28ED5
oklch(70.6% 0.108 307)
-
Step 500
500
#9F71CA
oklch(63.1% 0.137 306.7)
-
Step 600
600
#8A57B6
oklch(55.5% 0.149 307)
-
Step 700
700
#76479D
oklch(49.2% 0.139 307.3)
-
Step 800
800
#603B7F
oklch(42.8% 0.114 307.4)
-
Step 900
900 (this color)
#402557
oklch(32.4% 0.09 307)
-
Step 950
950
#2E1E3C
oklch(27% 0.058 307.5)
#402557 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) | #153059 | 0.071 |
| Deuteranopia (no green cones) | #1E3256 | 0.065 |
| Tritanopia (no blue cones) | #3C2E3A | 0.065 |
| Achromatopsia (no color) | #313131 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #402557
#402557
oklch(32.4% 0.09 307)
- #283B00
#283B00
oklch(32.4% 0.084 127.1)
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 #402557, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Plum Purple #4E0550 ΔE 0.062
- Space Cadet #2B2D42 ΔE 0.062
- Deep Violet #490648 ΔE 0.063
- Grape Purple #5D1451 ΔE 0.067
- Prussian Blue #1D3557 ΔE 0.069
- Eggplant Purple #430541 ΔE 0.071
- Royal Purple #4B006E ΔE 0.073
- Gunmetal #293241 ΔE 0.073
Use #402557 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.