#7173DB
Closest named color: Medium Slate Blue (#7B68EE). oklch(60.4% 0.155 279.9), rgb(113, 115, 219).
Aa
Black text reads best on this color (5.17:1).
About this color
#7173DB is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.155 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.043 away. Black text reads best on it, at 5.17:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.155) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 5.17:1 |
| White text | 4.05:1 |
Values
| HEX | #7173DB |
| RGB | rgb(113, 115, 219) |
| HSL | hsl(239, 60%, 65%) |
| OKLCH | oklch(60.4% 0.155 279.9) |
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 #7173DB | 4.05:1 | AA large text | Lc -73.1 | Content text, not long reading |
| Black text on #7173DB | 5.17:1 | AA | Lc 36.5 | Non-text elements, placeholder text |
| #7173DB text on white | 4.05:1 | AA large text | Lc 67.6 | Content text, not long reading |
| #7173DB text on black | 5.17:1 | AA | Lc -34.1 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D3D7F5
oklch(88.5% 0.041 279.5)
-
Step 300
300
#B6BCF1
oklch(80.9% 0.075 279.5)
-
Step 400
400
#9297EB
oklch(70.6% 0.122 280.2)
-
Step 500
500 (this color)
#7173DB
oklch(60.4% 0.155 279.9)
-
Step 600
600
#6362D2
oklch(55.6% 0.168 279.8)
-
Step 700
700
#5250B6
oklch(49% 0.157 279.8)
-
Step 800
800
#434293
oklch(42.6% 0.13 279.9)
-
Step 900
900
#383975
oklch(37.7% 0.1 279.7)
-
Step 950
950
#212245
oklch(27.1% 0.064 280)
#7173DB 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) | #4682DF | 0.057 |
| Deuteranopia (no green cones) | #3D7AD9 | 0.059 |
| Tritanopia (no blue cones) | #49899C | 0.135 |
| Achromatopsia (no color) | #7E7E7E | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7173DB
#7173DB
oklch(60.4% 0.155 279.9)
- #938200
#938200
oklch(60.4% 0.126 100.1)
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 #7173DB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.043
- Cornflower #6A79F7 ΔE 0.043
- Medium Purple #9370DB ΔE 0.051
- Dark Periwinkle #665FD1 ΔE 0.054
- Soft Blue #6488EA ΔE 0.055
- Light Indigo #6D5ACF ΔE 0.062
- Slate Blue #6A5ACD ΔE 0.064
- Royal Blue #4169E1 ΔE 0.068
Use #7173DB 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.