#6F55B1
Closest named color: Iris (#6258C4). oklch(52% 0.141 294), rgb(111, 85, 177).
Aa
White text reads best on this color (5.81:1).
About this color
#6F55B1 is a medium-dark, vivid purple. In OKLCH its lightness is 52%, its chroma 0.141 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.036 away. White text reads best on it, at 5.81:1.
| Hue family | Purples |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.141) |
| Temperature | in between |
| Nearest name | Iris (#6258C4) |
| Black text | 3.61:1 |
| White text | 5.81:1 |
Values
| HEX | #6F55B1 |
| RGB | rgb(111, 85, 177) |
| HSL | hsl(257, 37%, 51%) |
| OKLCH | oklch(52% 0.141 294) |
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 #6F55B1 | 5.81:1 | AA | Lc -84.1 | Fine for body text |
| Black text on #6F55B1 | 3.61:1 | AA large text | Lc 25.2 | Dividers and decoration only |
| #6F55B1 text on white | 5.81:1 | AA | Lc 78.9 | Fine for body text |
| #6F55B1 text on black | 3.61:1 | AA large text | Lc -22.9 | 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
#F5F4FB
oklch(97% 0.009 292.8)
-
Step 100
100
#EAE8F6
oklch(93.7% 0.019 292.6)
-
Step 200
200
#DAD5F0
oklch(88.5% 0.037 294.1)
-
Step 300
300
#C2B9E9
oklch(80.9% 0.068 293.4)
-
Step 400
400
#A493DE
oklch(70.7% 0.109 293.8)
-
Step 500
500
#8F76D5
oklch(63% 0.14 294.1)
-
Step 600
600
#7A5DC2
oklch(55.6% 0.152 294.1)
-
Step 700
700 (this color)
#6F55B1
oklch(52% 0.141 294)
-
Step 800
800
#543F88
oklch(42.7% 0.117 294.1)
-
Step 900
900
#45366D
oklch(37.7% 0.092 294.1)
-
Step 950
950
#282040
oklch(27% 0.059 293.6)
#6F55B1 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) | #3066B4 | 0.086 |
| Deuteranopia (no green cones) | #3664AF | 0.081 |
| Tritanopia (no blue cones) | #5F677B | 0.112 |
| Achromatopsia (no color) | #656565 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6F55B1
#6F55B1
oklch(52% 0.141 294)
- #697000
#697000
oklch(52.1% 0.117 114)
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 #6F55B1, closest first.
No curated palette has a color within ΔE 0.04 of #6F55B1.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.036
- Slate Blue #6A5ACD ΔE 0.044
- Light Indigo #6D5ACF ΔE 0.047
- Dark Periwinkle #665FD1 ΔE 0.054
- Deep Lavender #8D5EB7 ΔE 0.059
- Bluey Purple #6241C7 ΔE 0.065
- Muted Purple #805B87 ΔE 0.079
- French Blue #436BAD ΔE 0.080
Use #6F55B1 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.