#673ACC
Closest named color: Bluey Purple (#6241C7). oklch(49.2% 0.21 290.6), rgb(103, 58, 204).
Aa
White text reads best on this color (6.87:1).
About this color
#673ACC is a medium-dark, vivid purple. In OKLCH its lightness is 49%, its chroma 0.210 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluey Purple (#6241C7), ΔE 0.016 away. White text reads best on it, at 6.87:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.210) |
| Temperature | in between |
| Nearest name | Bluey Purple (#6241C7) |
| Black text | 3.05:1 |
| White text | 6.87:1 |
Values
| HEX | #673ACC |
| RGB | rgb(103, 58, 204) |
| HSL | hsl(258, 59%, 51%) |
| OKLCH | oklch(49.2% 0.21 290.6) |
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 #673ACC | 6.87:1 | AA | Lc -88.0 | Fine for body text |
| Black text on #673ACC | 3.05:1 | AA large text | Lc 21.1 | Dividers and decoration only |
| #673ACC text on white | 6.87:1 | AA | Lc 83.0 | Fine for body text |
| #673ACC text on black | 3.05:1 | AA large text | Lc -18.9 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E9E7FD
oklch(93.6% 0.03 290)
-
Step 200
200
#D8D3FD
oklch(88.4% 0.058 290.6)
-
Step 300
300
#C0B5FE
oklch(80.8% 0.102 290.8)
-
Step 400
400
#A28BFD
oklch(70.6% 0.163 290.9)
-
Step 500
500
#8D69FB
oklch(63% 0.208 290.5)
-
Step 600
600
#7A4AEA
oklch(55.6% 0.227 290.9)
-
Step 700
700 (this color)
#673ACC
oklch(49.2% 0.21 290.6)
-
Step 800
800
#5331A5
oklch(42.6% 0.175 290.4)
-
Step 900
900
#442E83
oklch(37.8% 0.136 290.3)
-
Step 950
950
#281C4C
oklch(27% 0.085 291.2)
#673ACC 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) | #005DD0 | 0.113 |
| Deuteranopia (no green cones) | #0057C9 | 0.110 |
| Tritanopia (no blue cones) | #45607F | 0.168 |
| Achromatopsia (no color) | #5A5A5A | 0.212 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673ACC
#673ACC
oklch(49.2% 0.21 290.6)
- #646600
#646600
oklch(49.2% 0.108 111.1)
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 #673ACC, closest first.
No curated palette has a color within ΔE 0.04 of #673ACC.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Purple #6241C7 ΔE 0.016
- Blurple #5539CC ΔE 0.032
- Blue With A Hint Of Purple #533CC6 ΔE 0.035
- Burple #6832E3 ΔE 0.037
- Purple Blue #5D21D0 ΔE 0.043
- Purpley Blue #5F34E7 ΔE 0.046
- Purply Blue #661AEE ΔE 0.062
- Iris #6258C4 ΔE 0.064
Use #673ACC 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.