#7B3797
Closest named color: Rebecca Purple (#663399). oklch(47.1% 0.159 314.7), rgb(123, 55, 151).
Aa
White text reads best on this color (7.40:1).
About this color
#7B3797 is a medium-dark, vivid purple. In OKLCH its lightness is 47%, its chroma 0.159 and its hue 315°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.044 away. White text reads best on it, at 7.40:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.159) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.83:1 |
| White text | 7.40:1 |
Values
| HEX | #7B3797 |
| RGB | rgb(123, 55, 151) |
| HSL | hsl(283, 47%, 40%) |
| OKLCH | oklch(47.1% 0.159 314.7) |
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 #7B3797 | 7.40:1 | AAA | Lc -90.0 | Preferred for body text |
| Black text on #7B3797 | 2.83:1 | Fails | Lc 18.9 | Dividers and decoration only |
| #7B3797 text on white | 7.40:1 | AAA | Lc 85.2 | Fine for body text |
| #7B3797 text on black | 2.83:1 | Fails | Lc -16.9 | 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
#F8F3FA
oklch(97% 0.011 316.5)
-
Step 100
100
#F0E6F4
oklch(93.7% 0.021 316.5)
-
Step 200
200
#E4D1ED
oklch(88.5% 0.043 315)
-
Step 300
300
#D3B2E3
oklch(80.8% 0.076 314.6)
-
Step 400
400
#BD88D5
oklch(70.6% 0.123 314.9)
-
Step 500
500
#AC68CA
oklch(63% 0.157 314.7)
-
Step 600
600
#974DB7
oklch(55.5% 0.171 314.5)
-
Step 700
700 (this color)
#7B3797
oklch(47.1% 0.159 314.7)
-
Step 800
800
#693380
oklch(42.7% 0.133 314.6)
-
Step 900
900
#552E67
oklch(37.7% 0.103 314.1)
-
Step 950
950
#321B3C
oklch(26.9% 0.066 314.9)
#7B3797 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) | #14529A | 0.149 |
| Deuteranopia (no green cones) | #355795 | 0.128 |
| Tritanopia (no blue cones) | #794862 | 0.104 |
| Achromatopsia (no color) | #555555 | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7B3797
#7B3797
oklch(47.1% 0.159 314.7)
- #366A00
#366A00
oklch(46.9% 0.136 134.6)
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 #7B3797, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.044
- Warm Purple #952E8F ΔE 0.054
- Light Eggplant #894585 ΔE 0.057
- Dark Magenta #8B008B ΔE 0.068
- Purply #983FB2 ΔE 0.071
- Purple #800080 ΔE 0.073
- Grape #7209B7 ΔE 0.081
- Bluey Purple #6241C7 ΔE 0.092
Use #7B3797 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.