#63519A
Closest named color: Twilight (#4E518B). oklch(48.7% 0.115 293), rgb(99, 81, 154).
Aa
White text reads best on this color (6.61:1).
About this color
#63519A is a medium-dark, moderately saturated purple. In OKLCH its lightness is 49%, its chroma 0.115 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.042 away. White text reads best on it, at 6.61:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.115) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.17:1 |
| White text | 6.61:1 |
Values
| HEX | #63519A |
| RGB | rgb(99, 81, 154) |
| HSL | hsl(255, 31%, 46%) |
| OKLCH | oklch(48.7% 0.115 293) |
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 #63519A | 6.61:1 | AA | Lc -87.6 | Fine for body text |
| Black text on #63519A | 3.17:1 | AA large text | Lc 21.5 | Dividers and decoration only |
| #63519A text on white | 6.61:1 | AA | Lc 82.6 | Fine for body text |
| #63519A text on black | 3.17:1 | AA large text | Lc -19.3 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#EAE8F4
oklch(93.6% 0.016 293.7)
-
Step 200
200
#D9D6EC
oklch(88.5% 0.03 292)
-
Step 300
300
#C1BBE2
oklch(81% 0.055 292.2)
-
Step 400
400
#A296D3
oklch(70.6% 0.089 293)
-
Step 500
500
#8C7BC8
oklch(63% 0.115 293)
-
Step 600
600
#7763B4
oklch(55.5% 0.123 293.3)
-
Step 700
700 (this color)
#63519A
oklch(48.7% 0.115 293)
-
Step 800
800
#52437E
oklch(42.7% 0.096 293.6)
-
Step 900
900
#433965
oklch(37.6% 0.074 292.9)
-
Step 950
950
#27223B
oklch(27% 0.046 292.2)
#63519A 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) | #385E9D | 0.064 |
| Deuteranopia (no green cones) | #3A5B98 | 0.061 |
| Tritanopia (no blue cones) | #565F6E | 0.093 |
| Achromatopsia (no color) | #5D5D5D | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63519A
#63519A
oklch(48.7% 0.115 293)
- #616500
#616500
oklch(48.7% 0.108 112.5)
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 #63519A, closest first.
No curated palette has a color within ΔE 0.04 of #63519A.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.042
- Dusk #4E5481 ΔE 0.055
- Dusky Blue #475F94 ΔE 0.055
- Denim Blue #3B5B92 ΔE 0.063
- Iris #6258C4 ΔE 0.066
- Blueberry #464196 ΔE 0.067
- Muted Purple #805B87 ΔE 0.070
- Rebecca Purple #663399 ΔE 0.070
Use #63519A 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.