#615B9E
Closest named color: Dusky Blue (#475F94). oklch(50.7% 0.105 286.1), rgb(97, 91, 158).
Aa
White text reads best on this color (6.00:1).
About this color
#615B9E is a medium-dark, moderately saturated purple. In OKLCH its lightness is 51%, its chroma 0.105 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.042 away. White text reads best on it, at 6.00:1.
| Hue family | Purples |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.49:1 |
| White text | 6.00:1 |
Values
| HEX | #615B9E |
| RGB | rgb(97, 91, 158) |
| HSL | hsl(245, 27%, 49%) |
| OKLCH | oklch(50.7% 0.105 286.1) |
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 #615B9E | 6.00:1 | AA | Lc -85.1 | Fine for body text |
| Black text on #615B9E | 3.49:1 | AA large text | Lc 24.2 | Dividers and decoration only |
| #615B9E text on white | 6.00:1 | AA | Lc 79.9 | Fine for body text |
| #615B9E text on black | 3.49:1 | AA large text | Lc -21.9 | 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
#E9E9F3
oklch(93.7% 0.013 286.1)
-
Step 200
200
#D7D7EB
oklch(88.5% 0.027 285.8)
-
Step 300
300
#BDBCE1
oklch(80.8% 0.052 286.4)
-
Step 400
400
#9C99D1
oklch(70.6% 0.081 286.6)
-
Step 500
500
#8480C5
oklch(63.1% 0.103 285.7)
-
Step 600
600
#6E68B2
oklch(55.6% 0.113 285.8)
-
Step 700
700 (this color)
#615B9E
oklch(50.7% 0.105 286.1)
-
Step 800
800
#4B477C
oklch(42.7% 0.086 285.6)
-
Step 900
900
#3F3C64
oklch(37.8% 0.067 286.1)
-
Step 950
950
#25233A
oklch(27% 0.042 287.2)
#615B9E 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) | #4465A1 | 0.044 |
| Deuteranopia (no green cones) | #43619C | 0.043 |
| Tritanopia (no blue cones) | #506875 | 0.089 |
| Achromatopsia (no color) | #636363 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #615B9E
#615B9E
oklch(50.7% 0.105 286.1)
- #6D680B
#6D680B
oklch(50.6% 0.104 106.1)
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 #615B9E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.042
- Twilight #4E518B ΔE 0.050
- French Blue #436BAD ΔE 0.055
- Denim Blue #3B5B92 ΔE 0.057
- Dusk #4E5481 ΔE 0.058
- Iris #6258C4 ΔE 0.062
- Muted Purple #805B87 ΔE 0.063
- Denim #3B638C ΔE 0.064
Use #615B9E 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.