#63537A
Closest named color: Dusty Grape (#545775). oklch(47.4% 0.064 302.8), rgb(99, 83, 122).
Aa
White text reads best on this color (6.88:1).
About this color
#63537A is a medium-dark, muted purple. In OKLCH its lightness is 47%, its chroma 0.064 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.028 away. White text reads best on it, at 6.88:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.064) |
| Temperature | in between |
| Nearest name | Dusty Grape (#545775) |
| Black text | 3.04:1 |
| White text | 6.88:1 |
Values
| HEX | #63537A |
| RGB | rgb(99, 83, 122) |
| HSL | hsl(265, 19%, 40%) |
| OKLCH | oklch(47.4% 0.064 302.8) |
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 #63537A | 6.88:1 | AA | Lc -88.8 | Fine for body text |
| Black text on #63537A | 3.04:1 | AA large text | Lc 20.3 | Dividers and decoration only |
| #63537A text on white | 6.88:1 | AA | Lc 83.8 | Fine for body text |
| #63537A text on black | 3.04:1 | AA large text | Lc -18.2 | 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 700.
-
Step 50
50
#F6F5F8
oklch(97.2% 0.004 301.4)
-
Step 100
100
#EBE8EF
oklch(93.5% 0.01 305.4)
-
Step 200
200
#DBD7E3
oklch(88.6% 0.017 301.2)
-
Step 300
300
#C4BCD2
oklch(80.9% 0.032 302.2)
-
Step 400
400
#A69ABB
oklch(70.8% 0.049 301.7)
-
Step 500
500
#9180AA
oklch(63% 0.065 303.1)
-
Step 600
600
#7B6A95
oklch(55.7% 0.068 302.3)
-
Step 700
700 (this color)
#63537A
oklch(47.4% 0.064 302.8)
-
Step 800
800
#554867
oklch(42.7% 0.053 303.4)
-
Step 900
900
#463C54
oklch(37.6% 0.042 303.5)
-
Step 950
950
#292331
oklch(26.9% 0.027 304.2)
#63537A 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) | #4B5A7C | 0.040 |
| Deuteranopia (no green cones) | #4E5A79 | 0.037 |
| Tritanopia (no blue cones) | #5F5961 | 0.050 |
| Achromatopsia (no color) | #5A5A5A | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63537A
#63537A
oklch(47.4% 0.064 302.8)
- #556238
#556238
oklch(47.4% 0.065 122.9)
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 #63537A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.028
- Dusk #4E5481 ΔE 0.034
- Twilight #4E518B ΔE 0.045
- YInMn Blue #415A77 ΔE 0.054
- Dusky Blue #475F94 ΔE 0.059
- Muted Purple #805B87 ΔE 0.059
- Dull Purple #84597E ΔE 0.062
- Slate #516572 ΔE 0.063
Use #63537A 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.