#451E66
Closest named color: Royal Purple (#4B006E). oklch(33% 0.122 305.5), rgb(69, 30, 102).
Aa
White text reads best on this color (12.87:1).
About this color
#451E66 is a dark, moderately saturated purple. In OKLCH its lightness is 33%, its chroma 0.122 and its hue 306°. 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 12.87:1.
| Hue family | Purples |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.122) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.63:1 |
| White text | 12.87:1 |
Values
| HEX | #451E66 |
| RGB | rgb(69, 30, 102) |
| HSL | hsl(273, 55%, 26%) |
| OKLCH | oklch(33% 0.122 305.5) |
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 #451E66 | 12.87:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #451E66 | 1.63:1 | Fails | Lc 0.0 | Not readable |
| #451E66 text on white | 12.87:1 | AAA | Lc 98.5 | Preferred for body text |
| #451E66 text on black | 1.63:1 | 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
#F7F3FC
oklch(97% 0.013 306)
-
Step 100
100
#EEE6F8
oklch(93.6% 0.025 305.8)
-
Step 200
200
#E1D1F5
oklch(88.5% 0.052 305.4)
-
Step 300
300
#CFB2F0
oklch(81% 0.091 305.8)
-
Step 400
400
#B787E9
oklch(70.8% 0.146 305.5)
-
Step 500
500
#A565E2
oklch(63.2% 0.187 305.3)
-
Step 600
600
#9147CF
oklch(55.6% 0.203 305.8)
-
Step 700
700
#7B37B4
oklch(49.1% 0.19 305.3)
-
Step 800
800
#642F91
oklch(42.6% 0.156 305.6)
-
Step 900
900 (this color)
#451E66
oklch(33% 0.122 305.5)
-
Step 950
950
#301A44
oklch(27% 0.078 306)
#451E66 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) | #003168 | 0.098 |
| Deuteranopia (no green cones) | #093264 | 0.095 |
| Tritanopia (no blue cones) | #3F2E3F | 0.088 |
| Achromatopsia (no color) | #323232 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #451E66
#451E66
oklch(33% 0.122 305.5)
- #2B3C00
#2B3C00
oklch(32.9% 0.083 125.4)
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 #451E66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.042
- Plum Purple #4E0550 ΔE 0.056
- Indigo #4B0082 ΔE 0.059
- Deep Violet #490648 ΔE 0.065
- Grape Purple #5D1451 ΔE 0.066
- Eggplant Purple #430541 ΔE 0.077
- Midnight Blue #191970 ΔE 0.089
- Dark Purple #35063E ΔE 0.092
Use #451E66 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.