#6155B4
Closest named color: Iris (#6258C4). oklch(51% 0.145 285.8), rgb(97, 85, 180).
Aa
White text reads best on this color (6.05:1).
About this color
#6155B4 is a medium-dark, vivid purple. In OKLCH its lightness is 51%, its chroma 0.145 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.025 away. White text reads best on it, at 6.05:1.
| Hue family | Purples |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.46:1 |
| White text | 6.05:1 |
Values
| HEX | #6155B4 |
| RGB | rgb(97, 85, 180) |
| HSL | hsl(248, 39%, 52%) |
| OKLCH | oklch(51% 0.145 285.8) |
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 #6155B4 | 6.05:1 | AA | Lc -85.2 | Fine for body text |
| Black text on #6155B4 | 3.46:1 | AA large text | Lc 24.0 | Dividers and decoration only |
| #6155B4 text on white | 6.05:1 | AA | Lc 80.0 | Fine for body text |
| #6155B4 text on black | 3.46:1 | AA large text | Lc -21.8 | 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 700.
-
Step 50
50
#F5F5FC
oklch(97.2% 0.009 286.2)
-
Step 100
100
#E8E8F7
oklch(93.5% 0.02 286)
-
Step 200
200
#D6D6F3
oklch(88.5% 0.04 285.6)
-
Step 300
300
#BCBBED
oklch(81% 0.07 285.6)
-
Step 400
400
#9A96E4
oklch(70.7% 0.113 285.5)
-
Step 500
500
#837ADC
oklch(63.1% 0.144 285.7)
-
Step 600
600
#6E61C9
oklch(55.7% 0.156 285.9)
-
Step 700
700 (this color)
#6155B4
oklch(51% 0.145 285.8)
-
Step 800
800
#4B428D
oklch(42.8% 0.12 285.6)
-
Step 900
900
#3E3870
oklch(37.6% 0.093 285.9)
-
Step 950
950
#242142
oklch(26.9% 0.06 285.8)
#6155B4 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) | #2765B7 | 0.072 |
| Deuteranopia (no green cones) | #2460B2 | 0.072 |
| Tritanopia (no blue cones) | #46697C | 0.122 |
| Achromatopsia (no color) | #626262 | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6155B4
#6155B4
oklch(51% 0.145 285.8)
- #6F6900
#6F6900
oklch(51% 0.109 105.7)
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 #6155B4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.025
- Slate Blue #6A5ACD ΔE 0.043
- Light Indigo #6D5ACF ΔE 0.047
- Dark Periwinkle #665FD1 ΔE 0.050
- Bluey Purple #6241C7 ΔE 0.055
- Warm Blue #4B57DB ΔE 0.068
- French Blue #436BAD ΔE 0.069
- Blue With A Hint Of Purple #533CC6 ΔE 0.070
Use #6155B4 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.