#6F3799
Closest named color: Rebecca Purple (#663399). oklch(45.7% 0.157 307.6), rgb(111, 55, 153).
Aa
White text reads best on this color (7.82:1).
About this color
#6F3799 is a medium-dark, vivid purple. In OKLCH its lightness is 46%, its chroma 0.157 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.020 away. White text reads best on it, at 7.82:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.157) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.68:1 |
| White text | 7.82:1 |
Values
| HEX | #6F3799 |
| RGB | rgb(111, 55, 153) |
| HSL | hsl(274, 47%, 41%) |
| OKLCH | oklch(45.7% 0.157 307.6) |
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 #6F3799 | 7.82:1 | AAA | Lc -91.4 | Preferred for body text |
| Black text on #6F3799 | 2.68:1 | Fails | Lc 17.4 | Dividers and decoration only |
| #6F3799 text on white | 7.82:1 | AAA | Lc 86.7 | Fine for body text |
| #6F3799 text on black | 2.68:1 | Fails | Lc -15.4 | 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 800.
-
Step 50
50
#F8F3FC
oklch(97.1% 0.013 310.5)
-
Step 100
100
#EFE6F8
oklch(93.7% 0.026 308.2)
-
Step 200
200
#E2D1F4
oklch(88.5% 0.051 307.2)
-
Step 300
300
#D1B1EF
oklch(80.9% 0.092 307.9)
-
Step 400
400
#B986E7
oklch(70.7% 0.146 307.3)
-
Step 500
500
#A863DF
oklch(63% 0.187 307.6)
-
Step 600
600
#9445CD
oklch(55.6% 0.204 307.7)
-
Step 700
700
#7E36B1
oklch(49.1% 0.189 307.6)
-
Step 800
800 (this color)
#6F3799
oklch(45.7% 0.157 307.6)
-
Step 900
900
#532B73
oklch(37.8% 0.122 307.1)
-
Step 950
950
#311A43
oklch(27.1% 0.077 308)
#6F3799 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) | #00509C | 0.136 |
| Deuteranopia (no green cones) | #255297 | 0.120 |
| Tritanopia (no blue cones) | #684B63 | 0.111 |
| Achromatopsia (no color) | #525252 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6F3799
#6F3799
oklch(45.7% 0.157 307.6)
- #446200
#446200
oklch(45.5% 0.118 127.5)
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 #6F3799, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.020
- Grape #7209B7 ΔE 0.073
- Blueberry #464196 ΔE 0.074
- Dark Slate Blue #483D8B ΔE 0.075
- Light Eggplant #894585 ΔE 0.075
- Warm Purple #952E8F ΔE 0.077
- Bluey Purple #6241C7 ΔE 0.079
- Purple #800080 ΔE 0.081
Use #6F3799 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.