#451F72
Closest named color: Royal Purple (#4B006E). oklch(34.2% 0.135 300.2), rgb(69, 31, 114).
Aa
White text reads best on this color (12.41:1).
About this color
#451F72 is a dark, moderately saturated purple. In OKLCH its lightness is 34%, its chroma 0.135 and its hue 300°. 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 12.41:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.135) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.69:1 |
| White text | 12.41:1 |
Values
| HEX | #451F72 |
| RGB | rgb(69, 31, 114) |
| HSL | hsl(267, 57%, 28%) |
| OKLCH | oklch(34.2% 0.135 300.2) |
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 #451F72 | 12.41:1 | AAA | Lc -101.1 | Preferred for body text |
| Black text on #451F72 | 1.69:1 | Fails | Lc 0.0 | Not readable |
| #451F72 text on white | 12.41:1 | AAA | Lc 97.6 | Preferred for body text |
| #451F72 text on black | 1.69:1 | 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
#EDE6FB
oklch(93.7% 0.029 301)
-
Step 200
200
#DFD1FA
oklch(88.5% 0.058 300.8)
-
Step 300
300
#CBB2F9
oklch(81% 0.102 300.3)
-
Step 400
400
#B186F5
oklch(70.7% 0.162 300.2)
-
Step 500
500
#9F62F1
oklch(63% 0.207 300.2)
-
Step 600
600
#8B42E0
oklch(55.5% 0.226 300.1)
-
Step 700
700
#7632C2
oklch(49% 0.209 300.1)
-
Step 800
800
#602C9D
oklch(42.7% 0.173 300.1)
-
Step 900
900 (this color)
#451F72
oklch(34.2% 0.135 300.2)
-
Step 950
950
#2E1A49
oklch(27.1% 0.085 300.5)
#451F72 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) | #003474 | 0.095 |
| Deuteranopia (no green cones) | #003470 | 0.096 |
| Tritanopia (no blue cones) | #3B3346 | 0.101 |
| Achromatopsia (no color) | #343434 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #451F72
#451F72
oklch(34.2% 0.135 300.2)
- #333E00
#333E00
oklch(34.2% 0.081 120.3)
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 #451F72, 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 0.044
- Plum Purple #4E0550 ΔE 0.073
- Grape Purple #5D1451 ΔE 0.080
- Dark Slate Blue #483D8B ΔE 0.080
- Deep Violet #490648 ΔE 0.084
- Midnight Blue #191970 ΔE 0.086
- Imperial Purple #480CA8 ΔE 0.091
Use #451F72 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.