#6B5ABC
Closest named color: Iris (#6258C4). oklch(53.3% 0.148 288.3), rgb(107, 90, 188).
Aa
White text reads best on this color (5.50:1).
About this color
#6B5ABC is a medium-dark, vivid purple. In OKLCH its lightness is 53%, its chroma 0.148 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.020 away. White text reads best on it, at 5.50:1.
| Hue family | Purples |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.148) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.81:1 |
| White text | 5.50:1 |
Values
| HEX | #6B5ABC |
| RGB | rgb(107, 90, 188) |
| HSL | hsl(250, 42%, 55%) |
| OKLCH | oklch(53.3% 0.148 288.3) |
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 #6B5ABC | 5.50:1 | AA | Lc -82.6 | Fine for body text |
| Black text on #6B5ABC | 3.81:1 | AA large text | Lc 26.8 | Dividers and decoration only |
| #6B5ABC text on white | 5.50:1 | AA | Lc 77.3 | Fine for body text |
| #6B5ABC text on black | 3.81:1 | AA large text | Lc -24.5 | 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 600.
-
Step 50
50
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E9E8F6
oklch(93.6% 0.019 289.3)
-
Step 200
200
#D7D6F1
oklch(88.5% 0.037 287.3)
-
Step 300
300
#BEBAEA
oklch(80.8% 0.067 288.6)
-
Step 400
400
#9E96DF
oklch(70.8% 0.106 288.4)
-
Step 500
500
#877AD6
oklch(63.1% 0.136 288.4)
-
Step 600
600 (this color)
#6B5ABC
oklch(53.3% 0.148 288.3)
-
Step 700
700
#5F50A9
oklch(49.1% 0.137 288)
-
Step 800
800
#4E4289
oklch(42.8% 0.114 288.4)
-
Step 900
900
#40386E
oklch(37.7% 0.09 288.1)
-
Step 950
950
#252140
oklch(26.9% 0.057 287.9)
#6B5ABC 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) | #2E6BBF | 0.079 |
| Deuteranopia (no green cones) | #2E66BA | 0.077 |
| Tritanopia (no blue cones) | #536F82 | 0.125 |
| Achromatopsia (no color) | #696969 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B5ABC
#6B5ABC
oklch(53.3% 0.148 288.3)
- #737100
#737100
oklch(53.3% 0.115 108.5)
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 #6B5ABC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.020
- Slate Blue #6A5ACD ΔE 0.026
- Light Indigo #6D5ACF ΔE 0.030
- Dark Periwinkle #665FD1 ΔE 0.034
- Deep Lavender #8D5EB7 ΔE 0.060
- Bluey Purple #6241C7 ΔE 0.063
- Warm Blue #4B57DB ΔE 0.068
- French Blue #436BAD ΔE 0.072
Use #6B5ABC 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.