#671DA4
Closest named color: Grape (#7209B7). oklch(42.6% 0.197 303.4), rgb(103, 29, 164).
Aa
White text reads best on this color (9.17:1).
About this color
#671DA4 is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.197 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape (#7209B7), ΔE 0.037 away. White text reads best on it, at 9.17:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.197) |
| Temperature | in between |
| Nearest name | Grape (#7209B7) |
| Black text | 2.28:1 |
| White text | 9.17:1 |
Values
| HEX | #671DA4 |
| RGB | rgb(103, 29, 164) |
| HSL | hsl(273, 70%, 38%) |
| OKLCH | oklch(42.6% 0.197 303.4) |
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 #671DA4 | 9.17:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #671DA4 | 2.28:1 | Fails | Lc 14.1 | Not readable |
| #671DA4 text on white | 9.17:1 | AAA | Lc 89.9 | Fine for body text |
| #671DA4 text on black | 2.28:1 | Fails | Lc -12.3 | 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
#E2CFFD
oklch(88.5% 0.066 303.9)
-
Step 300
300
#D0AEFE
oklch(80.9% 0.116 303.4)
-
Step 400
400
#B97FFD
oklch(70.7% 0.184 303.3)
-
Step 500
500
#A956FB
oklch(63.2% 0.236 303.3)
-
Step 600
600
#952FEA
oklch(55.7% 0.256 303.3)
-
Step 700
700
#7F1DCB
oklch(49.1% 0.238 303.3)
-
Step 800
800 (this color)
#671DA4
oklch(42.6% 0.197 303.4)
-
Step 900
900
#542182
oklch(37.7% 0.154 303.7)
-
Step 950
950
#31164C
oklch(27.1% 0.096 303.6)
#671DA4 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) | #0046A8 | 0.139 |
| Deuteranopia (no green cones) | #0047A1 | 0.141 |
| Tritanopia (no blue cones) | #5A4362 | 0.142 |
| Achromatopsia (no color) | #484848 | 0.199 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #671DA4
#671DA4
oklch(42.6% 0.197 303.4)
- #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 #671DA4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape #7209B7 ΔE 0.037
- Rebecca Purple #663399 ΔE 0.039
- Chrysanthemum #560BAD ΔE 0.045
- Imperial Purple #480CA8 ΔE 0.070
- Purple Blue #5D21D0 ΔE 0.077
- Violet Blue #510AC9 ΔE 0.080
- Bluey Purple #6241C7 ΔE 0.084
- Blue With A Hint Of Purple #533CC6 ΔE 0.084
Use #671DA4 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.