#6C5FB3
Closest named color: Iris (#6258C4). oklch(53.7% 0.128 288.4), rgb(108, 95, 179).
Aa
White text reads best on this color (5.34:1).
About this color
#6C5FB3 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 54%, its chroma 0.128 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.038 away. White text reads best on it, at 5.34:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.92:1 |
| White text | 5.34:1 |
Values
| HEX | #6C5FB3 |
| RGB | rgb(108, 95, 179) |
| HSL | hsl(249, 36%, 54%) |
| OKLCH | oklch(53.7% 0.128 288.4) |
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 #6C5FB3 | 5.34:1 | AA | Lc -81.8 | Fine for body text |
| Black text on #6C5FB3 | 3.92:1 | AA large text | Lc 27.6 | Dividers and decoration only |
| #6C5FB3 text on white | 5.34:1 | AA | Lc 76.5 | Fine for body text |
| #6C5FB3 text on black | 3.92:1 | AA large text | Lc -25.3 | 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 600.
-
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
#D8D6EE
oklch(88.5% 0.033 289.5)
-
Step 300
300
#BEBBE4
oklch(80.8% 0.057 288.4)
-
Step 400
400
#9E97D7
oklch(70.6% 0.093 288.8)
-
Step 500
500
#877DCC
oklch(63.2% 0.117 288.4)
-
Step 600
600 (this color)
#6C5FB3
oklch(53.7% 0.128 288.4)
-
Step 700
700
#5F53A0
oklch(49.1% 0.12 288.3)
-
Step 800
800
#4E4481
oklch(42.7% 0.099 289)
-
Step 900
900
#403A68
oklch(37.7% 0.077 288.1)
-
Step 950
950
#26223D
oklch(27% 0.049 289.5)
#6C5FB3 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) | #406DB6 | 0.063 |
| Deuteranopia (no green cones) | #4069B1 | 0.061 |
| Tritanopia (no blue cones) | #597080 | 0.108 |
| Achromatopsia (no color) | #6B6B6B | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C5FB3
#6C5FB3
oklch(53.7% 0.128 288.4)
- #747200
#747200
oklch(53.6% 0.116 108.5)
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 #6C5FB3, closest first.
No curated palette has a color within ΔE 0.04 of #6C5FB3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.038
- Slate Blue #6A5ACD ΔE 0.044
- Light Indigo #6D5ACF ΔE 0.047
- Dark Periwinkle #665FD1 ΔE 0.048
- Deep Lavender #8D5EB7 ΔE 0.055
- French Blue #436BAD ΔE 0.062
- Dark Lavender #856798 ΔE 0.067
- Dusky Blue #475F94 ΔE 0.074
Use #6C5FB3 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.