#51459E
Closest named color: Blueberry (#464196). oklch(45.1% 0.139 285.5), rgb(81, 69, 158).
Aa
White text reads best on this color (7.79:1).
About this color
#51459E is a medium-dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.139 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.025 away. White text reads best on it, at 7.79:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.69:1 |
| White text | 7.79:1 |
Values
| HEX | #51459E |
| RGB | rgb(81, 69, 158) |
| HSL | hsl(248, 39%, 45%) |
| OKLCH | oklch(45.1% 0.139 285.5) |
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 #51459E | 7.79:1 | AAA | Lc -91.5 | Preferred for body text |
| Black text on #51459E | 2.69:1 | Fails | Lc 17.2 | Dividers and decoration only |
| #51459E text on white | 7.79:1 | AAA | Lc 86.8 | Fine for body text |
| #51459E text on black | 2.69:1 | Fails | Lc -15.3 | Dividers and decoration only |
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 800.
-
Step 50
50
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E8E8F9
oklch(93.6% 0.023 286)
-
Step 200
200
#D6D6F7
oklch(88.6% 0.045 285.4)
-
Step 300
300
#BBBAF4
oklch(81% 0.081 285.2)
-
Step 400
400
#9994EE
oklch(70.8% 0.13 285.1)
-
Step 500
500
#8276E8
oklch(63% 0.166 285.4)
-
Step 600
600
#6D5CD6
oklch(55.6% 0.18 285.3)
-
Step 700
700
#5C4BBA
oklch(49.2% 0.168 285.4)
-
Step 800
800 (this color)
#51459E
oklch(45.1% 0.139 285.5)
-
Step 900
900
#3E3678
oklch(37.8% 0.109 285.5)
-
Step 950
950
#242046
oklch(27% 0.069 285.6)
#51459E 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) | #1055A1 | 0.073 |
| Deuteranopia (no green cones) | #0B509C | 0.073 |
| Tritanopia (no blue cones) | #37596A | 0.118 |
| Achromatopsia (no color) | #525252 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51459E
#51459E
oklch(45.1% 0.139 285.5)
- #5D5800
#5D5800
oklch(45.1% 0.096 105.8)
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 #51459E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.025
- Dark Slate Blue #483D8B ΔE 0.039
- Twilight #4E518B ΔE 0.048
- Rebecca Purple #663399 ΔE 0.052
- Blue With A Hint Of Purple #533CC6 ΔE 0.067
- Dusk #4E5481 ΔE 0.068
- Denim Blue #3B5B92 ΔE 0.069
- Cobalt #1E488F ΔE 0.070
Use #51459E 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.