#451B68
Closest named color: Royal Purple (#4B006E). oklch(32.8% 0.129 305.3), rgb(69, 27, 104).
Aa
White text reads best on this color (13.04:1).
About this color
#451B68 is a dark, moderately saturated purple. In OKLCH its lightness is 33%, its chroma 0.129 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Royal Purple (#4B006E), ΔE 0.036 away. White text reads best on it, at 13.04:1.
| Hue family | Purples |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.129) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.60:1 |
| White text | 13.04:1 |
Values
| HEX | #451B68 |
| RGB | rgb(69, 27, 104) |
| HSL | hsl(273, 59%, 26%) |
| OKLCH | oklch(32.8% 0.129 305.3) |
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 #451B68 | 13.04:1 | AAA | Lc -102.1 | Preferred for body text |
| Black text on #451B68 | 1.60:1 | Fails | Lc 0.0 | Not readable |
| #451B68 text on white | 13.04:1 | AAA | Lc 98.7 | Preferred for body text |
| #451B68 text on black | 1.60:1 | 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
#F7F3FD
oklch(97% 0.014 304.1)
-
Step 100
100
#EEE6F9
oklch(93.7% 0.027 304.8)
-
Step 200
200
#E1D1F6
oklch(88.5% 0.053 304.9)
-
Step 300
300
#CFB1F3
oklch(80.9% 0.097 305.1)
-
Step 400
400
#B885ED
oklch(70.8% 0.155 305.4)
-
Step 500
500
#A662E7
oklch(63.1% 0.197 305)
-
Step 600
600
#9243D5
oklch(55.6% 0.215 305.2)
-
Step 700
700
#7C33B8
oklch(49% 0.199 305.1)
-
Step 800
800
#652C95
oklch(42.7% 0.165 305.2)
-
Step 900
900 (this color)
#451B68
oklch(32.8% 0.129 305.3)
-
Step 950
950
#301946
oklch(27% 0.083 305.1)
#451B68 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) | #00306A | 0.100 |
| Deuteranopia (no green cones) | #003166 | 0.102 |
| Tritanopia (no blue cones) | #3F2D3F | 0.093 |
| Achromatopsia (no color) | #313131 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #451B68
#451B68
oklch(32.8% 0.129 305.3)
- #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 #451B68, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.036
- Indigo #4B0082 ΔE 0.053
- Plum Purple #4E0550 ΔE 0.056
- Deep Violet #490648 ΔE 0.065
- Grape Purple #5D1451 ΔE 0.068
- Eggplant Purple #430541 ΔE 0.078
- Midnight Blue #191970 ΔE 0.087
- Dark Purple #35063E ΔE 0.092
Use #451B68 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.