#51536B
Closest named color: Dusty Grape (#545775). oklch(45% 0.039 281), rgb(81, 83, 107).
Aa
White text reads best on this color (7.50:1).
About this color
#51536B is a dark, muted purple. In OKLCH its lightness is 45%, its chroma 0.039 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.019 away. White text reads best on it, at 7.50:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.79:1 |
| White text | 7.50:1 |
Values
| HEX | #51536B |
| RGB | rgb(81, 83, 107) |
| HSL | hsl(235, 14%, 37%) |
| OKLCH | oklch(45% 0.039 281) |
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 #51536B | 7.50:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #51536B | 2.79:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #51536B text on white | 7.50:1 | AAA | Lc 86.1 | Fine for body text |
| #51536B text on black | 2.79:1 | Fails | Lc -16.0 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E9E9EE
oklch(93.5% 0.007 286.3)
-
Step 200
200
#D7D8E2
oklch(88.4% 0.014 281.5)
-
Step 300
300
#BDBFD0
oklch(80.8% 0.024 280.5)
-
Step 400
400
#9C9EB8
oklch(70.6% 0.038 281.9)
-
Step 500
500
#8487A6
oklch(63.2% 0.047 280.6)
-
Step 600
600
#6E7091
oklch(55.6% 0.051 281.9)
-
Step 700
700
#5C5E7B
oklch(49.2% 0.046 281.5)
-
Step 800
800 (this color)
#51536B
oklch(45% 0.039 281)
-
Step 900
900
#3E4052
oklch(37.7% 0.031 279.8)
-
Step 950
950
#252530
oklch(26.9% 0.02 285)
#51536B 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) | #4D566C | 0.010 |
| Deuteranopia (no green cones) | #4B546A | 0.010 |
| Tritanopia (no blue cones) | #4B575B | 0.035 |
| Achromatopsia (no color) | #555555 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51536B
#51536B
oklch(45% 0.039 281)
- #5A563D
#5A563D
oklch(45% 0.039 100.1)
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 #51536B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.019
- YInMn Blue #415A77 ΔE 0.030
- Dusk #4E5481 ΔE 0.036
- Slate #516572 ΔE 0.053
- Twilight #4E518B ΔE 0.055
- Light Navy Blue #2E5A88 ΔE 0.060
- Denim #3B638C ΔE 0.064
- Denim Blue #3B5B92 ΔE 0.066
Use #51536B 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.