#6331DB
Closest named color: Burple (#6832E3). oklch(49.1% 0.236 287.6), rgb(99, 49, 219).
Aa
White text reads best on this color (7.01:1).
About this color
#6331DB is a medium-dark, vivid purple. In OKLCH its lightness is 49%, its chroma 0.236 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Burple (#6832E3), ΔE 0.015 away. White text reads best on it, at 7.01:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.236) |
| Temperature | cool |
| Nearest name | Burple (#6832E3) |
| Black text | 2.99:1 |
| White text | 7.01:1 |
Values
| HEX | #6331DB |
| RGB | rgb(99, 49, 219) |
| HSL | hsl(258, 70%, 53%) |
| OKLCH | oklch(49.1% 0.236 287.6) |
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 #6331DB | 7.01:1 | AAA | Lc -88.2 | Fine for body text |
| Black text on #6331DB | 2.99:1 | Fails | Lc 20.8 | Dividers and decoration only |
| #6331DB text on white | 7.01:1 | AAA | Lc 83.2 | Fine for body text |
| #6331DB text on black | 2.99:1 | Fails | Lc -18.7 | 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
#F5F4FF
oklch(97.1% 0.015 290.3)
-
Step 100
100
#E8E7FF
oklch(93.6% 0.032 287.7)
-
Step 200
200
#D6D4FF
oklch(88.5% 0.059 287.3)
-
Step 300
300
#BCB7FF
oklch(80.9% 0.101 287.1)
-
Step 400
400
#9C8DFF
oklch(70.6% 0.163 287.5)
-
Step 500
500
#876BFF
oklch(63.1% 0.211 287.5)
-
Step 600
600
#7542FB
oklch(55.6% 0.254 287.6)
-
Step 700
700 (this color)
#6331DB
oklch(49.1% 0.236 287.6)
-
Step 800
800
#502BB1
oklch(42.6% 0.196 287.5)
-
Step 900
900
#412A8C
oklch(37.6% 0.153 287.4)
-
Step 950
950
#261A52
oklch(27% 0.097 287.9)
#6331DB 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) | #005DE0 | 0.113 |
| Deuteranopia (no green cones) | #0054D8 | 0.106 |
| Tritanopia (no blue cones) | #2E6286 | 0.190 |
| Achromatopsia (no color) | #595959 | 0.238 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6331DB
#6331DB
oklch(49.1% 0.236 287.6)
- #676400
#676400
oklch(49% 0.105 107.7)
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 #6331DB, closest first.
No curated palette has a color within ΔE 0.04 of #6331DB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burple #6832E3 ΔE 0.015
- Purpley Blue #5F34E7 ΔE 0.021
- Purple Blue #5D21D0 ΔE 0.032
- Blurple #5539CC ΔE 0.033
- Purply Blue #661AEE ΔE 0.035
- Bluey Purple #6241C7 ΔE 0.040
- Blue With A Hint Of Purple #533CC6 ΔE 0.043
- Blue Purple #5A06EF ΔE 0.049
Use #6331DB 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.