#451E75
Closest named color: Indigo (#4B0082). oklch(34.3% 0.14 299.3), rgb(69, 30, 117).
Aa
White text reads best on this color (12.38:1).
About this color
#451E75 is a dark, vivid purple. In OKLCH its lightness is 34%, its chroma 0.140 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Indigo (#4B0082), ΔE 0.040 away. White text reads best on it, at 12.38:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | vivid (0.140) |
| Temperature | in between |
| Nearest name | Indigo (#4B0082) |
| Black text | 1.69:1 |
| White text | 12.38:1 |
Values
| HEX | #451E75 |
| RGB | rgb(69, 30, 117) |
| HSL | hsl(267, 59%, 29%) |
| OKLCH | oklch(34.3% 0.14 299.3) |
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 #451E75 | 12.38:1 | AAA | Lc -101.1 | Preferred for body text |
| Black text on #451E75 | 1.69:1 | Fails | Lc 0.0 | Not readable |
| #451E75 text on white | 12.38:1 | AAA | Lc 97.5 | Preferred for body text |
| #451E75 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
#F7F4FE
oklch(97.2% 0.014 299.8)
-
Step 100
100
#ECE6FC
oklch(93.6% 0.03 298.3)
-
Step 200
200
#DED1FB
oklch(88.4% 0.059 299.3)
-
Step 300
300
#CAB2FB
oklch(81% 0.104 299.2)
-
Step 400
400
#B085F9
oklch(70.6% 0.168 299.2)
-
Step 500
500
#9F60F6
oklch(63.1% 0.216 299.5)
-
Step 600
600
#8B40E5
oklch(55.7% 0.233 299.3)
-
Step 700
700
#762FC7
oklch(49.1% 0.218 299.3)
-
Step 800
800
#602AA1
oklch(42.8% 0.18 299.3)
-
Step 900
900 (this color)
#451E75
oklch(34.3% 0.14 299.3)
-
Step 950
950
#2D194B
oklch(27% 0.089 298.7)
#451E75 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) | #003478 | 0.095 |
| Deuteranopia (no green cones) | #003473 | 0.096 |
| Tritanopia (no blue cones) | #3A3347 | 0.105 |
| Achromatopsia (no color) | #343434 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #451E75
#451E75
oklch(34.3% 0.14 299.3)
- #343E00
#343E00
oklch(34.2% 0.081 119.4)
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 #451E75, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo #4B0082 ΔE 0.040
- Royal Purple #4B006E ΔE 0.042
- Plum Purple #4E0550 ΔE 0.077
- Dark Slate Blue #483D8B ΔE 0.079
- Grape Purple #5D1451 ΔE 0.084
- Midnight Blue #191970 ΔE 0.085
- Imperial Purple #480CA8 ΔE 0.086
- Deep Violet #490648 ΔE 0.088
Use #451E75 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.