#633559
Closest named color: Purple Brown (#673A3F). oklch(40% 0.083 335.6), rgb(99, 53, 89).
Aa
White text reads best on this color (9.61:1).
About this color
#633559 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.083 and its hue 336°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.051 away. White text reads best on it, at 9.61:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.083) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.18:1 |
| White text | 9.61:1 |
Values
| HEX | #633559 |
| RGB | rgb(99, 53, 89) |
| HSL | hsl(313, 30%, 30%) |
| OKLCH | oklch(40% 0.083 335.6) |
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 #633559 | 9.61:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #633559 | 2.18:1 | Fails | Lc 11.9 | Not readable |
| #633559 text on white | 9.61:1 | AAA | Lc 92.0 | Preferred for body text |
| #633559 text on black | 2.18:1 | Fails | Lc -10.4 | 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
#F9F3F8
oklch(97% 0.009 330.9)
-
Step 100
100
#F2E6EF
oklch(93.7% 0.018 334.2)
-
Step 200
200
#E9D1E2
oklch(88.5% 0.035 336.2)
-
Step 300
300
#DBB2D0
oklch(80.9% 0.062 335.9)
-
Step 400
400
#C888B9
oklch(70.6% 0.101 335.4)
-
Step 500
500
#B869A7
oklch(63% 0.128 335.5)
-
Step 600
600
#A35092
oklch(55.6% 0.137 335.6)
-
Step 700
700
#8C407D
oklch(49.2% 0.129 335.5)
-
Step 800
800
#723565
oklch(42.7% 0.107 336)
-
Step 900
900 (this color)
#633559
oklch(40% 0.083 335.6)
-
Step 950
950
#361C30
oklch(27% 0.052 336)
#633559 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) | #35415A | 0.085 |
| Deuteranopia (no green cones) | #424758 | 0.075 |
| Tritanopia (no blue cones) | #673743 | 0.041 |
| Achromatopsia (no color) | #454545 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #633559
#633559
oklch(40% 0.083 335.6)
- #185534
#185534
oklch(40.1% 0.083 155.6)
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 #633559, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.051
- Brownish Purple #76424E ΔE 0.061
- Grape Purple #5D1451 ΔE 0.073
- Velvet #750851 ΔE 0.076
- Rich Purple #720058 ΔE 0.083
- Red Purple #820747 ΔE 0.086
- Merlot #730039 ΔE 0.088
- Wine #80013F ΔE 0.090
Use #633559 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.