#7551B3
Closest named color: Iris (#6258C4). oklch(52.1% 0.15 297.9), rgb(117, 81, 179).
Aa
White text reads best on this color (5.85:1).
About this color
#7551B3 is a medium-dark, vivid purple. In OKLCH its lightness is 52%, its chroma 0.150 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.042 away. White text reads best on it, at 5.85:1.
| Hue family | Purples |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.150) |
| Temperature | in between |
| Nearest name | Iris (#6258C4) |
| Black text | 3.58:1 |
| White text | 5.85:1 |
Values
| HEX | #7551B3 |
| RGB | rgb(117, 81, 179) |
| HSL | hsl(262, 39%, 51%) |
| OKLCH | oklch(52.1% 0.15 297.9) |
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 #7551B3 | 5.85:1 | AA | Lc -84.3 | Fine for body text |
| Black text on #7551B3 | 3.58:1 | AA large text | Lc 25.0 | Dividers and decoration only |
| #7551B3 text on white | 5.85:1 | AA | Lc 79.0 | Fine for body text |
| #7551B3 text on black | 3.58:1 | AA large text | Lc -22.8 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EBE7F7
oklch(93.6% 0.022 297.4)
-
Step 200
200
#DCD4F1
oklch(88.5% 0.04 298.2)
-
Step 300
300
#C6B7EA
oklch(80.9% 0.073 298.2)
-
Step 400
400
#A990E0
oklch(70.7% 0.117 297.7)
-
Step 500
500
#9573D7
oklch(63.2% 0.148 297.7)
-
Step 600
600
#8059C4
oklch(55.6% 0.161 297.7)
-
Step 700
700 (this color)
#7551B3
oklch(52.1% 0.15 297.9)
-
Step 800
800
#583C89
oklch(42.7% 0.124 297.7)
-
Step 900
900
#48346E
oklch(37.7% 0.097 297.4)
-
Step 950
950
#2A1F40
oklch(27% 0.061 297.6)
#7551B3 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) | #2865B6 | 0.104 |
| Deuteranopia (no green cones) | #3364B1 | 0.096 |
| Tritanopia (no blue cones) | #67657A | 0.118 |
| Achromatopsia (no color) | #656565 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7551B3
#7551B3
oklch(52.1% 0.15 297.9)
- #647200
#647200
oklch(52.2% 0.121 117.9)
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 #7551B3, closest first.
No curated palette has a color within ΔE 0.04 of #7551B3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.042
- Slate Blue #6A5ACD ΔE 0.046
- Light Indigo #6D5ACF ΔE 0.048
- Deep Lavender #8D5EB7 ΔE 0.055
- Dark Periwinkle #665FD1 ΔE 0.058
- Bluey Purple #6241C7 ΔE 0.062
- Purply #983FB2 ΔE 0.070
- Amethyst #9B5FC0 ΔE 0.079
Use #7551B3 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.