#6C5FBB
Closest named color: Iris (#6258C4). oklch(54.2% 0.139 287.3), rgb(108, 95, 187).
Aa
White text reads best on this color (5.26:1).
About this color
#6C5FBB is a medium-dark, moderately saturated purple. In OKLCH its lightness is 54%, its chroma 0.139 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.030 away. White text reads best on it, at 5.26:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.99:1 |
| White text | 5.26:1 |
Values
| HEX | #6C5FBB |
| RGB | rgb(108, 95, 187) |
| HSL | hsl(248, 40%, 55%) |
| OKLCH | oklch(54.2% 0.139 287.3) |
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 #6C5FBB | 5.26:1 | AA | Lc -81.3 | Fine for body text |
| Black text on #6C5FBB | 3.99:1 | AA large text | Lc 28.1 | Dividers and decoration only |
| #6C5FBB text on white | 5.26:1 | AA | Lc 75.9 | Fine for body text |
| #6C5FBB text on black | 3.99:1 | AA large text | Lc -25.8 | 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
#D7D6F0
oklch(88.5% 0.036 287.4)
-
Step 300
300
#BDBBE8
oklch(80.9% 0.063 286.9)
-
Step 400
400
#9C97DC
oklch(70.7% 0.1 286.9)
-
Step 500
500
#857CD2
oklch(63.1% 0.127 287)
-
Step 600
600 (this color)
#6C5FBB
oklch(54.2% 0.139 287.3)
-
Step 700
700
#5E52A5
oklch(49.2% 0.129 287.3)
-
Step 800
800
#4C4386
oklch(42.6% 0.108 287)
-
Step 900
900
#3F396B
oklch(37.6% 0.084 287.2)
-
Step 950
950
#25223F
oklch(27.1% 0.053 287)
#6C5FBB 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) | #396EBE | 0.069 |
| Deuteranopia (no green cones) | #3969B9 | 0.067 |
| Tritanopia (no blue cones) | #557284 | 0.117 |
| Achromatopsia (no color) | #6C6C6C | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C5FBB
#6C5FBB
oklch(54.2% 0.139 287.3)
- #777300
#777300
oklch(54.2% 0.116 107.3)
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 #6C5FBB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.030
- Slate Blue #6A5ACD ΔE 0.032
- Light Indigo #6D5ACF ΔE 0.035
- Dark Periwinkle #665FD1 ΔE 0.035
- Deep Lavender #8D5EB7 ΔE 0.055
- French Blue #436BAD ΔE 0.066
- Warm Blue #4B57DB ΔE 0.074
- Bluey Purple #6241C7 ΔE 0.076
Use #6C5FBB 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.