#451F69
Closest named color: Royal Purple (#4B006E). oklch(33.4% 0.124 303.9), rgb(69, 31, 105).
Aa
White text reads best on this color (12.70:1).
About this color
#451F69 is a dark, moderately saturated purple. In OKLCH its lightness is 33%, its chroma 0.124 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 0.043 away. White text reads best on it, at 12.70:1.
| Hue family | Purples |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.124) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.65:1 |
| White text | 12.70:1 |
Values
| HEX | #451F69 |
| RGB | rgb(69, 31, 105) |
| HSL | hsl(271, 54%, 27%) |
| OKLCH | oklch(33.4% 0.124 303.9) |
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 #451F69 | 12.70:1 | AAA | Lc -101.7 | Preferred for body text |
| Black text on #451F69 | 1.65:1 | Fails | Lc 0.0 | Not readable |
| #451F69 text on white | 12.70:1 | AAA | Lc 98.2 | Preferred for body text |
| #451F69 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
#F7F4FC
oklch(97.2% 0.011 303.1)
-
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
#CDB2F2
oklch(80.9% 0.093 303.7)
-
Step 400
400
#B587EB
oklch(70.7% 0.148 304.1)
-
Step 500
500
#A365E5
oklch(63.1% 0.19 303.8)
-
Step 600
600
#8F47D3
oklch(55.6% 0.207 304)
-
Step 700
700
#7A37B7
oklch(49.2% 0.193 304)
-
Step 800
800
#632F94
oklch(42.7% 0.159 304)
-
Step 900
900 (this color)
#451F69
oklch(33.4% 0.124 303.9)
-
Step 950
950
#2F1A45
oklch(26.9% 0.079 304.1)
#451F69 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) | #00326B | 0.097 |
| Deuteranopia (no green cones) | #053367 | 0.096 |
| Tritanopia (no blue cones) | #3E2F41 | 0.089 |
| Achromatopsia (no color) | #333333 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #451F69
#451F69
oklch(33.4% 0.124 303.9)
- #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 #451F69, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.043
- Indigo #4B0082 ΔE 0.056
- Plum Purple #4E0550 ΔE 0.061
- Grape Purple #5D1451 ΔE 0.069
- Deep Violet #490648 ΔE 0.070
- Eggplant Purple #430541 ΔE 0.083
- Midnight Blue #191970 ΔE 0.088
- Dark Slate Blue #483D8B ΔE 0.089
Use #451F69 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.