#633EB9
Closest named color: Bluey Purple (#6241C7). oklch(47.7% 0.183 291.8), rgb(99, 62, 185).
Aa
White text reads best on this color (7.19:1).
About this color
#633EB9 is a medium-dark, vivid purple. In OKLCH its lightness is 48%, its chroma 0.183 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluey Purple (#6241C7), ΔE 0.023 away. White text reads best on it, at 7.19:1.
| Hue family | Purples |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.183) |
| Temperature | in between |
| Nearest name | Bluey Purple (#6241C7) |
| Black text | 2.92:1 |
| White text | 7.19:1 |
Values
| HEX | #633EB9 |
| RGB | rgb(99, 62, 185) |
| HSL | hsl(258, 50%, 48%) |
| OKLCH | oklch(47.7% 0.183 291.8) |
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 #633EB9 | 7.19:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #633EB9 | 2.92:1 | Fails | Lc 19.6 | Dividers and decoration only |
| #633EB9 text on white | 7.19:1 | AAA | Lc 84.4 | Fine for body text |
| #633EB9 text on black | 2.92:1 | Fails | Lc -17.6 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#EAE7FA
oklch(93.6% 0.026 293.1)
-
Step 200
200
#D9D4F8
oklch(88.5% 0.049 291.7)
-
Step 300
300
#C1B7F6
oklch(81% 0.088 291.6)
-
Step 400
400
#A38FF1
oklch(70.8% 0.141 291.8)
-
Step 500
500
#8E6FEC
oklch(63.1% 0.181 291.8)
-
Step 600
600
#7A53DB
oklch(55.7% 0.198 291.9)
-
Step 700
700 (this color)
#633EB9
oklch(47.7% 0.183 291.8)
-
Step 800
800
#533899
oklch(42.7% 0.151 291.5)
-
Step 900
900
#44317A
oklch(37.6% 0.119 291.6)
-
Step 950
950
#281E47
oklch(27% 0.074 292)
#633EB9 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) | #0059BD | 0.106 |
| Deuteranopia (no green cones) | #0055B6 | 0.105 |
| Tritanopia (no blue cones) | #495C76 | 0.147 |
| Achromatopsia (no color) | #575757 | 0.185 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #633EB9
#633EB9
oklch(47.7% 0.183 291.8)
- #5F6200
#5F6200
oklch(47.7% 0.106 111.9)
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 #633EB9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Purple #6241C7 ΔE 0.023
- Blue With A Hint Of Purple #533CC6 ΔE 0.036
- Blurple #5539CC ΔE 0.041
- Rebecca Purple #663399 ΔE 0.056
- Purple Blue #5D21D0 ΔE 0.058
- Iris #6258C4 ΔE 0.059
- Burple #6832E3 ΔE 0.067
- Majorelle Blue #3F37C9 ΔE 0.069
Use #633EB9 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.