#6355A1
Closest named color: Twilight (#4E518B). oklch(49.9% 0.118 289.9), rgb(99, 85, 161).
Aa
White text reads best on this color (6.27:1).
About this color
#6355A1 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 50%, its chroma 0.118 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.050 away. White text reads best on it, at 6.27:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.34:1 |
| White text | 6.27:1 |
Values
| HEX | #6355A1 |
| RGB | rgb(99, 85, 161) |
| HSL | hsl(251, 31%, 48%) |
| OKLCH | oklch(49.9% 0.118 289.9) |
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 #6355A1 | 6.27:1 | AA | Lc -86.3 | Fine for body text |
| Black text on #6355A1 | 3.34:1 | AA large text | Lc 22.9 | Dividers and decoration only |
| #6355A1 text on white | 6.27:1 | AA | Lc 81.1 | Fine for body text |
| #6355A1 text on black | 3.34:1 | AA large text | Lc -20.7 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E8F5
oklch(93.6% 0.017 289.6)
-
Step 200
200
#D8D6ED
oklch(88.5% 0.031 289.7)
-
Step 300
300
#BFBBE4
oklch(80.9% 0.057 289.5)
-
Step 400
400
#9F97D6
oklch(70.7% 0.091 289.7)
-
Step 500
500
#897CCB
oklch(63.1% 0.117 290.2)
-
Step 600
600
#7364B8
oklch(55.6% 0.127 289.8)
-
Step 700
700 (this color)
#6355A1
oklch(49.9% 0.118 289.9)
-
Step 800
800
#4F4480
oklch(42.7% 0.097 290.1)
-
Step 900
900
#413A67
oklch(37.7% 0.076 289.4)
-
Step 950
950
#26223C
oklch(27% 0.048 289.9)
#6355A1 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) | #3962A4 | 0.061 |
| Deuteranopia (no green cones) | #3A5E9F | 0.058 |
| Tritanopia (no blue cones) | #536473 | 0.098 |
| Achromatopsia (no color) | #606060 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6355A1
#6355A1
oklch(49.9% 0.118 289.9)
- #676800
#676800
oklch(50% 0.109 110.4)
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 #6355A1, closest first.
No curated palette has a color within ΔE 0.04 of #6355A1.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.050
- Dusky Blue #475F94 ΔE 0.054
- Iris #6258C4 ΔE 0.055
- Dusk #4E5481 ΔE 0.063
- Denim Blue #3B5B92 ΔE 0.064
- French Blue #436BAD ΔE 0.068
- Slate Blue #6A5ACD ΔE 0.070
- Muted Purple #805B87 ΔE 0.070
Use #6355A1 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.