#671CA5
Closest named color: Grape (#7209B7). oklch(42.6% 0.199 303.1), rgb(103, 28, 165).
Aa
White text reads best on this color (9.18:1).
About this color
#671CA5 is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.199 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape (#7209B7), ΔE 0.036 away. White text reads best on it, at 9.18:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.199) |
| Temperature | in between |
| Nearest name | Grape (#7209B7) |
| Black text | 2.28:1 |
| White text | 9.18:1 |
Values
| HEX | #671CA5 |
| RGB | rgb(103, 28, 165) |
| HSL | hsl(273, 71%, 38%) |
| OKLCH | oklch(42.6% 0.199 303.1) |
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 #671CA5 | 9.18:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #671CA5 | 2.28:1 | Fails | Lc 14.1 | Not readable |
| #671CA5 text on white | 9.18:1 | AAA | Lc 89.9 | Fine for body text |
| #671CA5 text on black | 2.28:1 | Fails | Lc -12.4 | Not readable |
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
#F7F3FE
oklch(97% 0.015 302.6)
-
Step 100
100
#EEE5FD
oklch(93.6% 0.033 302.7)
-
Step 200
200
#E1CFFD
oklch(88.4% 0.065 302.9)
-
Step 300
300
#D0AEFE
oklch(80.9% 0.116 303.4)
-
Step 400
400
#B97EFE
oklch(70.6% 0.187 303.2)
-
Step 500
500
#A955FC
oklch(63.1% 0.238 303.2)
-
Step 600
600
#952DEB
oklch(55.6% 0.259 303.2)
-
Step 700
700
#7F1BCC
oklch(49.1% 0.24 303.2)
-
Step 800
800 (this color)
#671CA5
oklch(42.6% 0.199 303.1)
-
Step 900
900
#542183
oklch(37.8% 0.155 303.4)
-
Step 950
950
#31154D
oklch(27% 0.099 303.3)
#671CA5 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) | #0046A9 | 0.139 |
| Deuteranopia (no green cones) | #0047A2 | 0.141 |
| Tritanopia (no blue cones) | #5A4362 | 0.144 |
| Achromatopsia (no color) | #484848 | 0.201 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #671CA5
#671CA5
oklch(42.6% 0.199 303.1)
- #445700
#445700
oklch(42.5% 0.104 123)
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 #671CA5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape #7209B7 ΔE 0.036
- Rebecca Purple #663399 ΔE 0.041
- Chrysanthemum #560BAD ΔE 0.043
- Imperial Purple #480CA8 ΔE 0.069
- Purple Blue #5D21D0 ΔE 0.075
- Violet Blue #510AC9 ΔE 0.078
- Blue With A Hint Of Purple #533CC6 ΔE 0.083
- Bluey Purple #6241C7 ΔE 0.083
Use #671CA5 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.