#6351C5
Closest named color: Iris (#6258C4). oklch(51.7% 0.174 285.7), rgb(99, 81, 197).
Aa
White text reads best on this color (5.97:1).
About this color
#6351C5 is a medium-dark, vivid purple. In OKLCH its lightness is 52%, its chroma 0.174 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.016 away. White text reads best on it, at 5.97:1.
| Hue family | Purples |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.174) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.51:1 |
| White text | 5.97:1 |
Values
| HEX | #6351C5 |
| RGB | rgb(99, 81, 197) |
| HSL | hsl(249, 50%, 55%) |
| OKLCH | oklch(51.7% 0.174 285.7) |
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 #6351C5 | 5.97:1 | AA | Lc -84.7 | Fine for body text |
| Black text on #6351C5 | 3.51:1 | AA large text | Lc 24.6 | Dividers and decoration only |
| #6351C5 text on white | 5.97:1 | AA | Lc 79.5 | Fine for body text |
| #6351C5 text on black | 3.51:1 | AA large text | Lc -22.3 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E8E8FA
oklch(93.6% 0.024 285.9)
-
Step 200
200
#D6D5F7
oklch(88.4% 0.047 286.8)
-
Step 300
300
#BBB9F5
oklch(80.8% 0.084 285.9)
-
Step 400
400
#9A93F0
oklch(70.7% 0.134 285.9)
-
Step 500
500
#8375EB
oklch(63.1% 0.172 285.8)
-
Step 600
600
#6E5AD9
oklch(55.6% 0.187 285.8)
-
Step 700
700 (this color)
#6351C5
oklch(51.7% 0.174 285.7)
-
Step 800
800
#4B3D98
oklch(42.7% 0.143 285.7)
-
Step 900
900
#3E3579
oklch(37.7% 0.112 285.8)
-
Step 950
950
#242047
oklch(27.1% 0.07 285.3)
#6351C5 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) | #0067C9 | 0.092 |
| Deuteranopia (no green cones) | #0060C3 | 0.089 |
| Tritanopia (no blue cones) | #406C83 | 0.146 |
| Achromatopsia (no color) | #636363 | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6351C5
#6351C5
oklch(51.7% 0.174 285.7)
- #716B00
#716B00
oklch(51.7% 0.11 105.8)
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 #6351C5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.016
- Slate Blue #6A5ACD ΔE 0.027
- Light Indigo #6D5ACF ΔE 0.031
- Bluey Purple #6241C7 ΔE 0.035
- Dark Periwinkle #665FD1 ΔE 0.037
- Warm Blue #4B57DB ΔE 0.048
- Blue With A Hint Of Purple #533CC6 ΔE 0.055
- Blurple #5539CC ΔE 0.058
Use #6351C5 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.