#513751
Closest named color: Purple Brown (#673A3F). oklch(37.7% 0.055 326.6), rgb(81, 55, 81).
Aa
White text reads best on this color (10.42:1).
About this color
#513751 is a dark, muted purple. In OKLCH its lightness is 38%, its chroma 0.055 and its hue 327°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.055 away. White text reads best on it, at 10.42:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | muted (0.055) |
| Temperature | in between |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.01:1 |
| White text | 10.42:1 |
Values
| HEX | #513751 |
| RGB | rgb(81, 55, 81) |
| HSL | hsl(300, 19%, 27%) |
| OKLCH | oklch(37.7% 0.055 326.6) |
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 #513751 | 10.42:1 | AAA | Lc -98.1 | Preferred for body text |
| Black text on #513751 | 2.01:1 | Fails | Lc 9.8 | Not readable |
| #513751 text on white | 10.42:1 | AAA | Lc 94.1 | Preferred for body text |
| #513751 text on black | 2.01:1 | 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
#F7F4F7
oklch(97% 0.005 325.6)
-
Step 100
100
#EEE7EE
oklch(93.5% 0.012 325.7)
-
Step 200
200
#E2D4E1
oklch(88.5% 0.023 328)
-
Step 300
300
#CFB8CF
oklch(80.9% 0.041 325.9)
-
Step 400
400
#B793B7
oklch(70.8% 0.066 326.2)
-
Step 500
500
#A577A5
oklch(63.1% 0.086 326.5)
-
Step 600
600
#8F6090
oklch(55.6% 0.091 326)
-
Step 700
700
#7A4F7A
oklch(49.1% 0.085 326.8)
-
Step 800
800
#634163
oklch(42.7% 0.07 326.7)
-
Step 900
900 (this color)
#513751
oklch(37.7% 0.055 326.6)
-
Step 950
950
#30202F
oklch(27% 0.036 328.6)
#513751 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) | #353E52 | 0.051 |
| Deuteranopia (no green cones) | #3B4150 | 0.047 |
| Tritanopia (no blue cones) | #533940 | 0.032 |
| Achromatopsia (no color) | #404040 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513751
#513751
oklch(37.7% 0.055 326.6)
- #2D4930
#2D4930
oklch(37.5% 0.054 147)
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 #513751, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.055
- Charcoal Grey #3C4142 ΔE 0.059
- Onyx #343A40 ΔE 0.063
- Dark Grey Blue #29465B ΔE 0.072
- Charcoal #264653 ΔE 0.076
- Gunmetal #293241 ΔE 0.080
- Dark Blue Grey #1F3B4D ΔE 0.081
- Grape Purple #5D1451 ΔE 0.081
Use #513751 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.