#51334B
Closest named color: Purple Brown (#673A3F). oklch(36.6% 0.057 334.2), rgb(81, 51, 75).
Aa
White text reads best on this color (10.90:1).
About this color
#51334B is a dark, muted purple. In OKLCH its lightness is 37%, its chroma 0.057 and its hue 334°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.057 away. White text reads best on it, at 10.90:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | muted (0.057) |
| Temperature | in between |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.92:1 |
| White text | 10.90:1 |
Values
| HEX | #51334B |
| RGB | rgb(81, 51, 75) |
| HSL | hsl(312, 23%, 26%) |
| OKLCH | oklch(36.6% 0.057 334.2) |
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 #51334B | 10.90:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #51334B | 1.92:1 | Fails | Lc 8.7 | Not readable |
| #51334B text on white | 10.90:1 | AAA | Lc 95.2 | Preferred for body text |
| #51334B text on black | 1.92:1 | Fails | Lc -7.5 | 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 900.
-
Step 50
50
#F8F4F7
oklch(97.1% 0.006 334)
-
Step 100
100
#EFE7ED
oklch(93.6% 0.012 334.1)
-
Step 200
200
#E3D4E0
oklch(88.6% 0.023 332.4)
-
Step 300
300
#D3B7CC
oklch(81% 0.043 334.7)
-
Step 400
400
#BC91B2
oklch(70.7% 0.068 334.7)
-
Step 500
500
#AA759F
oklch(63% 0.088 334.2)
-
Step 600
600
#955D8A
oklch(55.5% 0.095 334.2)
-
Step 700
700
#7F4D75
oklch(49.2% 0.088 334.5)
-
Step 800
800
#673F5F
oklch(42.6% 0.073 334.4)
-
Step 900
900 (this color)
#51334B
oklch(36.6% 0.057 334.2)
-
Step 950
950
#31202E
oklch(27% 0.035 332.9)
#51334B 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) | #333A4C | 0.055 |
| Deuteranopia (no green cones) | #3A3E4A | 0.051 |
| Tritanopia (no blue cones) | #54343C | 0.028 |
| Achromatopsia (no color) | #3D3D3D | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51334B
#51334B
oklch(36.6% 0.057 334.2)
- #254731
#254731
oklch(36.5% 0.055 154.3)
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 #51334B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.057
- Charcoal Grey #3C4142 ΔE 0.061
- Onyx #343A40 ΔE 0.061
- Grape Purple #5D1451 ΔE 0.074
- Gunmetal #293241 ΔE 0.076
- Space Cadet #2B2D42 ΔE 0.077
- Dark Grey Blue #29465B ΔE 0.079
- Dark Blue Grey #1F3B4D ΔE 0.082
Use #51334B 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.