#633198
Closest named color: Rebecca Purple (#663399). oklch(43.3% 0.161 302.4), rgb(99, 49, 152).
Aa
White text reads best on this color (8.66:1).
About this color
#633198 is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.161 and its hue 302°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.008 away. White text reads best on it, at 8.66:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.161) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.42:1 |
| White text | 8.66:1 |
Values
| HEX | #633198 |
| RGB | rgb(99, 49, 152) |
| HSL | hsl(269, 51%, 39%) |
| OKLCH | oklch(43.3% 0.161 302.4) |
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 #633198 | 8.66:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #633198 | 2.42:1 | Fails | Lc 14.8 | Not readable |
| #633198 text on white | 8.66:1 | AAA | Lc 89.1 | Fine for body text |
| #633198 text on black | 2.42:1 | Fails | Lc -13.1 | 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 800.
-
Step 50
50
#F7F4FD
oklch(97.2% 0.012 301.3)
-
Step 100
100
#EDE6F9
oklch(93.6% 0.026 302.6)
-
Step 200
200
#DFD2F7
oklch(88.6% 0.052 301.3)
-
Step 300
300
#CCB2F4
oklch(80.9% 0.095 302.4)
-
Step 400
400
#B387EE
oklch(70.7% 0.152 302.4)
-
Step 500
500
#A165E8
oklch(63.1% 0.193 302.3)
-
Step 600
600
#8D47D6
oklch(55.6% 0.21 302.5)
-
Step 700
700
#7837B9
oklch(49.1% 0.194 302.6)
-
Step 800
800 (this color)
#633198
oklch(43.3% 0.161 302.4)
-
Step 900
900
#4F2C77
oklch(37.7% 0.124 302.3)
-
Step 950
950
#2E1A46
oklch(26.9% 0.08 302.3)
#633198 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) | #004B9B | 0.122 |
| Deuteranopia (no green cones) | #024B96 | 0.122 |
| Tritanopia (no blue cones) | #584860 | 0.119 |
| Achromatopsia (no color) | #4B4B4B | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #633198
#633198
oklch(43.3% 0.161 302.4)
- #475900
#475900
oklch(43.3% 0.105 122.2)
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 #633198, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.008
- Dark Slate Blue #483D8B ΔE 0.058
- Blueberry #464196 ΔE 0.059
- Chrysanthemum #560BAD ΔE 0.067
- Grape #7209B7 ΔE 0.068
- Bluey Purple #6241C7 ΔE 0.081
- Blue With A Hint Of Purple #533CC6 ΔE 0.083
- Imperial Purple #480CA8 ΔE 0.083
Use #633198 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.