#51459D
Closest named color: Blueberry (#464196). oklch(45% 0.138 285.7), rgb(81, 69, 157).
Aa
White text reads best on this color (7.81:1).
About this color
#51459D is a medium-dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.138 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.024 away. White text reads best on it, at 7.81:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.68:1 |
| White text | 7.81:1 |
Values
| HEX | #51459D |
| RGB | rgb(81, 69, 157) |
| HSL | hsl(248, 39%, 44%) |
| OKLCH | oklch(45% 0.138 285.7) |
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 #51459D | 7.81:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #51459D | 2.68:1 | Fails | Lc 17.2 | Dividers and decoration only |
| #51459D text on white | 7.81:1 | AAA | Lc 86.8 | Fine for body text |
| #51459D text on black | 2.68:1 | Fails | Lc -15.2 | 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
#D6D6F6
oklch(88.6% 0.044 285.5)
-
Step 300
300
#BBBAF3
oklch(81% 0.08 285.3)
-
Step 400
400
#9A94ED
oklch(70.8% 0.128 285.7)
-
Step 500
500
#8376E7
oklch(63.1% 0.165 285.9)
-
Step 600
600
#6E5CD5
oklch(55.6% 0.179 285.8)
-
Step 700
700
#5C4BB9
oklch(49.1% 0.166 285.6)
-
Step 800
800 (this color)
#51459D
oklch(45% 0.138 285.7)
-
Step 900
900
#3E3677
oklch(37.7% 0.107 285.7)
-
Step 950
950
#242046
oklch(27% 0.069 285.6)
#51459D 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) | #1254A0 | 0.072 |
| Deuteranopia (no green cones) | #0E4F9B | 0.072 |
| Tritanopia (no blue cones) | #37586A | 0.115 |
| Achromatopsia (no color) | #525252 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51459D
#51459D
oklch(45% 0.138 285.7)
- #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 #51459D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.024
- Dark Slate Blue #483D8B ΔE 0.038
- Twilight #4E518B ΔE 0.047
- Rebecca Purple #663399 ΔE 0.052
- Dusk #4E5481 ΔE 0.067
- Blue With A Hint Of Purple #533CC6 ΔE 0.068
- Denim Blue #3B5B92 ΔE 0.068
- Cobalt #1E488F ΔE 0.069
Use #51459D 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.