#51276B
Closest named color: Grape Purple (#5D1451). oklch(36.3% 0.118 310.3), rgb(81, 39, 107).
Aa
White text reads best on this color (11.33:1).
About this color
#51276B is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.118 and its hue 310°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.058 away. White text reads best on it, at 11.33:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.118) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.85:1 |
| White text | 11.33:1 |
Values
| HEX | #51276B |
| RGB | rgb(81, 39, 107) |
| HSL | hsl(277, 47%, 29%) |
| OKLCH | oklch(36.3% 0.118 310.3) |
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 #51276B | 11.33:1 | AAA | Lc -99.5 | Preferred for body text |
| Black text on #51276B | 1.85:1 | Fails | Lc 8.2 | Not readable |
| #51276B text on white | 11.33:1 | AAA | Lc 95.7 | Preferred for body text |
| #51276B text on black | 1.85:1 | 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
#F8F3FC
oklch(97.1% 0.013 310.5)
-
Step 100
100
#EFE5F7
oklch(93.5% 0.026 310.4)
-
Step 200
200
#E3D1F2
oklch(88.5% 0.049 309.7)
-
Step 300
300
#D2B1EC
oklch(80.9% 0.089 309.8)
-
Step 400
400
#BC86E2
oklch(70.8% 0.141 310.2)
-
Step 500
500
#AB64D9
oklch(63.1% 0.18 310.3)
-
Step 600
600
#9746C7
oklch(55.6% 0.198 310.4)
-
Step 700
700
#8037AC
oklch(49.1% 0.183 309.9)
-
Step 800
800
#682F8B
oklch(42.7% 0.151 310)
-
Step 900
900 (this color)
#51276B
oklch(36.3% 0.118 310.3)
-
Step 950
950
#321A41
oklch(27.1% 0.075 310.8)
#51276B 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) | #0C386D | 0.104 |
| Deuteranopia (no green cones) | #203B69 | 0.091 |
| Tritanopia (no blue cones) | #4E3445 | 0.082 |
| Achromatopsia (no color) | #3A3A3A | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51276B
#51276B
oklch(36.3% 0.118 310.3)
- #2C4700
#2C4700
oklch(36.2% 0.097 129.9)
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 #51276B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.058
- Royal Purple #4B006E ΔE 0.062
- Indigo #4B0082 ΔE 0.069
- Plum Purple #4E0550 ΔE 0.072
- Dark Slate Blue #483D8B ΔE 0.073
- Deep Violet #490648 ΔE 0.084
- Rich Purple #720058 ΔE 0.085
- Rebecca Purple #663399 ΔE 0.089
Use #51276B 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.