#51456D
Closest named color: Dusk (#4E5481). oklch(42% 0.067 297.2), rgb(81, 69, 109).
Aa
White text reads best on this color (8.67:1).
About this color
#51456D is a dark, muted purple. In OKLCH its lightness is 42%, its chroma 0.067 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.048 away. White text reads best on it, at 8.67:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | muted (0.067) |
| Temperature | in between |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.42:1 |
| White text | 8.67:1 |
Values
| HEX | #51456D |
| RGB | rgb(81, 69, 109) |
| HSL | hsl(258, 22%, 35%) |
| OKLCH | oklch(42% 0.067 297.2) |
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 #51456D | 8.67:1 | AAA | Lc -94.2 | Preferred for body text |
| Black text on #51456D | 2.42:1 | Fails | Lc 14.3 | Not readable |
| #51456D text on white | 8.67:1 | AAA | Lc 89.7 | Fine for body text |
| #51456D text on black | 2.42:1 | Fails | Lc -12.5 | 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 800.
-
Step 50
50
#F6F5F9
oklch(97.2% 0.005 297.7)
-
Step 100
100
#EAE8F1
oklch(93.5% 0.012 296.3)
-
Step 200
200
#DAD6E6
oklch(88.4% 0.022 297.4)
-
Step 300
300
#C3BCD7
oklch(80.9% 0.038 297.4)
-
Step 400
400
#A499C3
oklch(70.7% 0.062 296.8)
-
Step 500
500
#8E7FB4
oklch(63% 0.08 297)
-
Step 600
600
#7968A0
oklch(55.6% 0.087 297.5)
-
Step 700
700
#665789
oklch(49.2% 0.08 297.2)
-
Step 800
800 (this color)
#51456D
oklch(42% 0.067 297.2)
-
Step 900
900
#443C5A
oklch(37.7% 0.051 296.1)
-
Step 950
950
#282335
oklch(27% 0.034 296.8)
#51456D 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) | #3B4C6F | 0.037 |
| Deuteranopia (no green cones) | #3D4B6C | 0.035 |
| Tritanopia (no blue cones) | #4C4C54 | 0.054 |
| Achromatopsia (no color) | #4B4B4B | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51456D
#51456D
oklch(42% 0.067 297.2)
- #4A5225
#4A5225
oklch(42% 0.067 117.7)
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 #51456D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.048
- Dusty Grape #545775 ΔE 0.052
- Twilight #4E518B ΔE 0.054
- Dark Slate Blue #483D8B ΔE 0.061
- YInMn Blue #415A77 ΔE 0.062
- Dark Grey Blue #29465B ΔE 0.069
- Blueberry #464196 ΔE 0.074
- Light Navy Blue #2E5A88 ΔE 0.075
Use #51456D 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.