#7551B5
Closest named color: Iris (#6258C4). oklch(52.2% 0.153 297.5), rgb(117, 81, 181).
Aa
White text reads best on this color (5.83:1).
About this color
#7551B5 is a medium-dark, vivid purple. In OKLCH its lightness is 52%, its chroma 0.153 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.040 away. White text reads best on it, at 5.83:1.
| Hue family | Purples |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.153) |
| Temperature | in between |
| Nearest name | Iris (#6258C4) |
| Black text | 3.60:1 |
| White text | 5.83:1 |
Values
| HEX | #7551B5 |
| RGB | rgb(117, 81, 181) |
| HSL | hsl(262, 40%, 51%) |
| OKLCH | oklch(52.2% 0.153 297.5) |
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 #7551B5 | 5.83:1 | AA | Lc -84.1 | Fine for body text |
| Black text on #7551B5 | 3.60:1 | AA large text | Lc 25.2 | Dividers and decoration only |
| #7551B5 text on white | 5.83:1 | AA | Lc 78.9 | Fine for body text |
| #7551B5 text on black | 3.60:1 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EBE7F7
oklch(93.6% 0.022 297.4)
-
Step 200
200
#DCD4F2
oklch(88.6% 0.042 297.7)
-
Step 300
300
#C5B7EB
oklch(80.9% 0.074 297.1)
-
Step 400
400
#A990E1
oklch(70.7% 0.118 297.5)
-
Step 500
500
#9572D8
oklch(63% 0.151 297.7)
-
Step 600
600
#8058C6
oklch(55.6% 0.165 297.5)
-
Step 700
700 (this color)
#7551B5
oklch(52.2% 0.153 297.5)
-
Step 800
800
#583C8A
oklch(42.8% 0.125 297.4)
-
Step 900
900
#48346F
oklch(37.8% 0.099 297.1)
-
Step 950
950
#2A1F41
oklch(27% 0.062 297)
#7551B5 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) | #2665B8 | 0.105 |
| Deuteranopia (no green cones) | #3164B3 | 0.097 |
| Tritanopia (no blue cones) | #67657B | 0.119 |
| Achromatopsia (no color) | #656565 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7551B5
#7551B5
oklch(52.2% 0.153 297.5)
- #657200
#657200
oklch(52.3% 0.121 117.3)
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 #7551B5, closest first.
No curated palette has a color within ΔE 0.04 of #7551B5.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.040
- Slate Blue #6A5ACD ΔE 0.044
- Light Indigo #6D5ACF ΔE 0.045
- Deep Lavender #8D5EB7 ΔE 0.055
- Dark Periwinkle #665FD1 ΔE 0.055
- Bluey Purple #6241C7 ΔE 0.060
- Purply #983FB2 ΔE 0.070
- Purpley #8756E4 ΔE 0.079
Use #7551B5 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.