#6B379D
Closest named color: Rebecca Purple (#663399). oklch(45.5% 0.16 304.1), rgb(107, 55, 157).
Aa
White text reads best on this color (7.89:1).
About this color
#6B379D is a medium-dark, vivid purple. In OKLCH its lightness is 45%, its chroma 0.160 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.015 away. White text reads best on it, at 7.89:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.160) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.65:1 |
| White text | 7.89:1 |
Values
| HEX | #6B379D |
| RGB | rgb(107, 55, 157) |
| HSL | hsl(271, 48%, 42%) |
| OKLCH | oklch(45.5% 0.16 304.1) |
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 #6B379D | 7.89:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #6B379D | 2.65:1 | Fails | Lc 17.1 | Dividers and decoration only |
| #6B379D text on white | 7.89:1 | AAA | Lc 86.9 | Fine for body text |
| #6B379D text on black | 2.65:1 | Fails | Lc -15.2 | 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
#F7F4FD
oklch(97.2% 0.012 301.3)
-
Step 100
100
#EEE6F9
oklch(93.7% 0.027 304.8)
-
Step 200
200
#E0D1F6
oklch(88.4% 0.053 303.7)
-
Step 300
300
#CEB2F2
oklch(81% 0.093 304.4)
-
Step 400
400
#B587EC
oklch(70.8% 0.15 303.8)
-
Step 500
500
#A464E5
oklch(63.1% 0.191 304.4)
-
Step 600
600
#8F46D3
oklch(55.5% 0.208 304.1)
-
Step 700
700
#7A36B7
oklch(49.1% 0.194 304.2)
-
Step 800
800 (this color)
#6B379D
oklch(45.5% 0.16 304.1)
-
Step 900
900
#512B76
oklch(37.7% 0.125 304.4)
-
Step 950
950
#2F1A45
oklch(26.9% 0.079 304.1)
#6B379D 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) | #0050A0 | 0.128 |
| Deuteranopia (no green cones) | #1A519B | 0.120 |
| Tritanopia (no blue cones) | #624D65 | 0.117 |
| Achromatopsia (no color) | #515151 | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B379D
#6B379D
oklch(45.5% 0.16 304.1)
- #496000
#496000
oklch(45.4% 0.113 124.2)
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 #6B379D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.015
- Blueberry #464196 ΔE 0.068
- Grape #7209B7 ΔE 0.068
- Dark Slate Blue #483D8B ΔE 0.070
- Bluey Purple #6241C7 ΔE 0.072
- Blue With A Hint Of Purple #533CC6 ΔE 0.080
- Chrysanthemum #560BAD ΔE 0.082
- Light Eggplant #894585 ΔE 0.084
Use #6B379D 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.