#451C55
Closest named color: Plum Purple (#4E0550). oklch(31.5% 0.105 315.3), rgb(69, 28, 85).
Aa
White text reads best on this color (13.54:1).
About this color
#451C55 is a dark, moderately saturated purple. In OKLCH its lightness is 31%, its chroma 0.105 and its hue 315°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Plum Purple (#4E0550), ΔE 0.039 away. White text reads best on it, at 13.54:1.
| Hue family | Purples |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.105) |
| Temperature | in between |
| Nearest name | Plum Purple (#4E0550) |
| Black text | 1.55:1 |
| White text | 13.54:1 |
Values
| HEX | #451C55 |
| RGB | rgb(69, 28, 85) |
| HSL | hsl(283, 50%, 22%) |
| OKLCH | oklch(31.5% 0.105 315.3) |
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 #451C55 | 13.54:1 | AAA | Lc -102.8 | Preferred for body text |
| Black text on #451C55 | 1.55:1 | Fails | Lc 0.0 | Not readable |
| #451C55 text on white | 13.54:1 | AAA | Lc 99.6 | Preferred for body text |
| #451C55 text on black | 1.55:1 | 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
#FAF2FD
oklch(97% 0.017 316.9)
-
Step 100
100
#F3E3FB
oklch(93.6% 0.036 314.6)
-
Step 200
200
#EBCCF9
oklch(88.5% 0.069 315.3)
-
Step 300
300
#DFA8F8
oklch(81% 0.124 314.9)
-
Step 400
400
#CE73F4
oklch(70.7% 0.199 315)
-
Step 500
500
#C142EF
oklch(63.1% 0.254 315.3)
-
Step 600
600
#AC00DC
oklch(55.6% 0.273 315.3)
-
Step 700
700
#9100BA
oklch(49% 0.241 315.3)
-
Step 800
800
#78009A
oklch(42.7% 0.21 315.5)
-
Step 900
900
#61147B
oklch(37.7% 0.165 315.4)
-
Step 950
950 (this color)
#451C55
oklch(31.5% 0.105 315.3)
#451C55 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) | #092C57 | 0.098 |
| Deuteranopia (no green cones) | #1B2F54 | 0.085 |
| Tritanopia (no blue cones) | #442635 | 0.069 |
| Achromatopsia (no color) | #2E2E2E | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #451C55
#451C55
oklch(31.5% 0.105 315.3)
- #1A3B00
#1A3B00
oklch(31.5% 0.092 135.2)
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 #451C55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Plum Purple #4E0550 ΔE 0.039
- Deep Violet #490648 ΔE 0.042
- Eggplant Purple #430541 ΔE 0.052
- Grape Purple #5D1451 ΔE 0.053
- Royal Purple #4B006E ΔE 0.058
- Dark Purple #35063E ΔE 0.070
- Aubergine #3D0734 ΔE 0.072
- Deep Purple #36013F ΔE 0.074
Use #451C55 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.