#51355A
Closest named color: Purple Brown (#673A3F). oklch(37.7% 0.071 317.7), rgb(81, 53, 90).
Aa
White text reads best on this color (10.46:1).
About this color
#51355A is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.071 and its hue 318°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.069 away. White text reads best on it, at 10.46:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.071) |
| Temperature | in between |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.00:1 |
| White text | 10.46:1 |
Values
| HEX | #51355A |
| RGB | rgb(81, 53, 90) |
| HSL | hsl(285, 26%, 28%) |
| OKLCH | oklch(37.7% 0.071 317.7) |
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 #51355A | 10.46:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #51355A | 2.00:1 | Fails | Lc 9.8 | Not readable |
| #51355A text on white | 10.46:1 | AAA | Lc 94.2 | Preferred for body text |
| #51355A text on black | 2.00:1 | Fails | Lc -8.4 | 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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EEE7F1
oklch(93.6% 0.015 316)
-
Step 200
200
#E1D3E6
oklch(88.4% 0.03 317.2)
-
Step 300
300
#CFB6D7
oklch(80.8% 0.053 317.9)
-
Step 400
400
#B790C3
oklch(70.7% 0.085 318.1)
-
Step 500
500
#A474B4
oklch(63.1% 0.108 317.4)
-
Step 600
600
#8F5BA0
oklch(55.5% 0.118 317.5)
-
Step 700
700
#7A4B89
oklch(49.2% 0.109 317.6)
-
Step 800
800
#633E6F
oklch(42.7% 0.09 317.5)
-
Step 900
900 (this color)
#51355A
oklch(37.7% 0.071 317.7)
-
Step 950
950
#2F1F35
oklch(26.9% 0.045 316.5)
#51355A 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) | #303E5B | 0.059 |
| Deuteranopia (no green cones) | #374059 | 0.053 |
| Tritanopia (no blue cones) | #513A43 | 0.047 |
| Achromatopsia (no color) | #3F3F3F | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51355A
#51355A
oklch(37.7% 0.071 317.7)
- #2E4A24
#2E4A24
oklch(37.6% 0.07 137.9)
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 #51355A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.069
- Grape Purple #5D1451 ΔE 0.073
- Charcoal Grey #3C4142 ΔE 0.073
- Onyx #343A40 ΔE 0.074
- Dark Grey Blue #29465B ΔE 0.076
- Dark Slate Blue #483D8B ΔE 0.083
- Charcoal #264653 ΔE 0.084
- Prussian Blue #1D3557 ΔE 0.086
Use #51355A 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.