#51536E
Closest named color: Dusty Grape (#545775). oklch(45.1% 0.044 281.2), rgb(81, 83, 110).
Aa
White text reads best on this color (7.46:1).
About this color
#51536E is a medium-dark, muted purple. In OKLCH its lightness is 45%, its chroma 0.044 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.016 away. White text reads best on it, at 7.46:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.81:1 |
| White text | 7.46:1 |
Values
| HEX | #51536E |
| RGB | rgb(81, 83, 110) |
| HSL | hsl(236, 15%, 37%) |
| OKLCH | oklch(45.1% 0.044 281.2) |
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 #51536E | 7.46:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #51536E | 2.81:1 | Fails | Lc 18.1 | Dividers and decoration only |
| #51536E text on white | 7.46:1 | AAA | Lc 86.0 | Fine for body text |
| #51536E text on black | 2.81:1 | Fails | Lc -16.1 | Dividers and decoration only |
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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E9E9EF
oklch(93.6% 0.008 286.2)
-
Step 200
200
#D7D8E3
oklch(88.5% 0.015 281.9)
-
Step 300
300
#BDBFD1
oklch(80.9% 0.025 280.8)
-
Step 400
400
#9C9EBA
oklch(70.7% 0.041 282.1)
-
Step 500
500
#8386A9
oklch(63% 0.053 280.9)
-
Step 600
600
#6D7095
oklch(55.7% 0.057 280.7)
-
Step 700
700
#5B5D7F
oklch(49% 0.054 281.6)
-
Step 800
800 (this color)
#51536E
oklch(45.1% 0.044 281.2)
-
Step 900
900
#3E4054
oklch(37.8% 0.034 280.2)
-
Step 950
950
#242531
oklch(26.9% 0.022 281.1)
#51536E 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) | #4C566F | 0.011 |
| Deuteranopia (no green cones) | #4A546D | 0.011 |
| Tritanopia (no blue cones) | #4A585C | 0.040 |
| Achromatopsia (no color) | #555555 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51536E
#51536E
oklch(45.1% 0.044 281.2)
- #5B573A
#5B573A
oklch(45.3% 0.044 101.3)
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 #51536E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.016
- YInMn Blue #415A77 ΔE 0.029
- Dusk #4E5481 ΔE 0.031
- Twilight #4E518B ΔE 0.050
- Slate #516572 ΔE 0.054
- Light Navy Blue #2E5A88 ΔE 0.057
- Denim #3B638C ΔE 0.061
- Denim Blue #3B5B92 ΔE 0.062
Use #51536E 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.