#451F6A
Closest named color: Royal Purple (#4B006E). oklch(33.5% 0.125 303.5), rgb(69, 31, 106).
Aa
White text reads best on this color (12.67:1).
About this color
#451F6A is a dark, moderately saturated purple. In OKLCH its lightness is 34%, its chroma 0.125 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Royal Purple (#4B006E), ΔE 0.042 away. White text reads best on it, at 12.67:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.125) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.65:1 |
| White text | 12.67:1 |
Values
| HEX | #451F6A |
| RGB | rgb(69, 31, 106) |
| HSL | hsl(270, 55%, 27%) |
| OKLCH | oklch(33.5% 0.125 303.5) |
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 #451F6A | 12.67:1 | AAA | Lc -101.6 | Preferred for body text |
| Black text on #451F6A | 1.65:1 | Fails | Lc 0.0 | Not readable |
| #451F6A text on white | 12.67:1 | AAA | Lc 98.2 | Preferred for body text |
| #451F6A text on black | 1.65:1 | 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
#F7F4FD
oklch(97.2% 0.012 301.3)
-
Step 100
100
#EDE6F9
oklch(93.6% 0.026 302.6)
-
Step 200
200
#E0D1F6
oklch(88.4% 0.053 303.7)
-
Step 300
300
#CDB2F3
oklch(80.9% 0.094 303.4)
-
Step 400
400
#B587ED
oklch(70.8% 0.151 303.6)
-
Step 500
500
#A364E6
oklch(63% 0.192 303.7)
-
Step 600
600
#8E46D4
oklch(55.5% 0.209 303.5)
-
Step 700
700
#7936B8
oklch(49% 0.195 303.4)
-
Step 800
800
#632F95
oklch(42.8% 0.161 303.7)
-
Step 900
900 (this color)
#451F6A
oklch(33.5% 0.125 303.5)
-
Step 950
950
#2F1A46
oklch(27% 0.081 303.5)
#451F6A 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) | #00326C | 0.096 |
| Deuteranopia (no green cones) | #033368 | 0.096 |
| Tritanopia (no blue cones) | #3E3041 | 0.093 |
| Achromatopsia (no color) | #333333 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #451F6A
#451F6A
oklch(33.5% 0.125 303.5)
- #2E3D00
#2E3D00
oklch(33.4% 0.083 123.7)
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 #451F6A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.042
- Indigo #4B0082 ΔE 0.054
- Plum Purple #4E0550 ΔE 0.062
- Grape Purple #5D1451 ΔE 0.070
- Deep Violet #490648 ΔE 0.072
- Eggplant Purple #430541 ΔE 0.084
- Midnight Blue #191970 ΔE 0.087
- Dark Slate Blue #483D8B ΔE 0.088
Use #451F6A 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.