#673BB4
Closest named color: Bluey Purple (#6241C7). oklch(47.3% 0.181 295.3), rgb(103, 59, 180).
Aa
White text reads best on this color (7.33:1).
About this color
#673BB4 is a medium-dark, vivid purple. In OKLCH its lightness is 47%, its chroma 0.181 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluey Purple (#6241C7), ΔE 0.033 away. White text reads best on it, at 7.33:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.181) |
| Temperature | in between |
| Nearest name | Bluey Purple (#6241C7) |
| Black text | 2.86:1 |
| White text | 7.33:1 |
Values
| HEX | #673BB4 |
| RGB | rgb(103, 59, 180) |
| HSL | hsl(262, 51%, 47%) |
| OKLCH | oklch(47.3% 0.181 295.3) |
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 #673BB4 | 7.33:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #673BB4 | 2.86:1 | Fails | Lc 19.1 | Dividers and decoration only |
| #673BB4 text on white | 7.33:1 | AAA | Lc 84.9 | Fine for body text |
| #673BB4 text on black | 2.86:1 | Fails | Lc -17.1 | 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
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#EBE7FA
oklch(93.7% 0.026 295.5)
-
Step 200
200
#DBD3F7
oklch(88.5% 0.05 295.5)
-
Step 300
300
#C4B6F4
oklch(80.9% 0.088 294.7)
-
Step 400
400
#A88DEE
oklch(70.7% 0.14 295.4)
-
Step 500
500
#946DE8
oklch(63.1% 0.179 295.4)
-
Step 600
600
#7F51D6
oklch(55.5% 0.195 295.2)
-
Step 700
700 (this color)
#673BB4
oklch(47.3% 0.181 295.3)
-
Step 800
800
#583696
oklch(42.6% 0.15 295.7)
-
Step 900
900
#483078
oklch(37.7% 0.118 295.5)
-
Step 950
950
#2A1D46
oklch(27% 0.074 295.6)
#673BB4 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) | #0057B8 | 0.115 |
| Deuteranopia (no green cones) | #0054B2 | 0.115 |
| Tritanopia (no blue cones) | #525872 | 0.142 |
| Achromatopsia (no color) | #565656 | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673BB4
#673BB4
oklch(47.3% 0.181 295.3)
- #5A6200
#5A6200
oklch(47.3% 0.107 115.2)
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 #673BB4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Purple #6241C7 ΔE 0.033
- Rebecca Purple #663399 ΔE 0.046
- Blue With A Hint Of Purple #533CC6 ΔE 0.046
- Blurple #5539CC ΔE 0.051
- Grape #7209B7 ΔE 0.062
- Purple Blue #5D21D0 ΔE 0.063
- Iris #6258C4 ΔE 0.067
- Burple #6832E3 ΔE 0.074
Use #673BB4 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.