#7578AB
Closest named color: Lavender Gray (#7E7F9A). oklch(59% 0.078 281.1), rgb(117, 120, 171).
Aa
Black text reads best on this color (5.03:1).
About this color
#7578AB is a medium-dark, moderately saturated purple. In OKLCH its lightness is 59%, its chroma 0.078 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Lavender Gray (#7E7F9A), ΔE 0.040 away. Black text reads best on it, at 5.03:1.
| Hue family | Purples |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Lavender Gray (#7E7F9A) |
| Black text | 5.03:1 |
| White text | 4.17:1 |
Values
| HEX | #7578AB |
| RGB | rgb(117, 120, 171) |
| HSL | hsl(237, 24%, 56%) |
| OKLCH | oklch(59% 0.078 281.1) |
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 #7578AB | 4.17:1 | AA large text | Lc -74.2 | Content text, not long reading |
| Black text on #7578AB | 5.03:1 | AA | Lc 35.4 | Non-text elements, placeholder text |
| #7578AB text on white | 4.17:1 | AA large text | Lc 68.7 | Content text, not long reading |
| #7578AB text on black | 5.03:1 | AA | Lc -32.9 | 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 600.
-
Step 50
50
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#E8E9F1
oklch(93.6% 0.011 280.5)
-
Step 200
200
#D6D8E6
oklch(88.5% 0.019 279.5)
-
Step 300
300
#BCBED7
oklch(80.8% 0.035 282)
-
Step 400
400
#9A9DC3
oklch(70.7% 0.055 281.3)
-
Step 500
500
#8185B4
oklch(63.1% 0.071 280.4)
-
Step 600
600 (this color)
#7578AB
oklch(59% 0.078 281.1)
-
Step 700
700
#595C89
oklch(49.1% 0.072 280.5)
-
Step 800
800
#494B6F
oklch(42.7% 0.06 281.1)
-
Step 900
900
#3D3F5A
oklch(37.8% 0.046 280.7)
-
Step 950
950
#242535
oklch(27.1% 0.03 281.4)
#7578AB 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) | #697EAD | 0.021 |
| Deuteranopia (no green cones) | #667AAA | 0.021 |
| Tritanopia (no blue cones) | #67818A | 0.068 |
| Achromatopsia (no color) | #7C7C7C | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7578AB
#7578AB
oklch(59% 0.078 281.1)
- #877F46
#877F46
oklch(59% 0.078 101.4)
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 #7578AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lavender Gray #7E7F9A ΔE 0.040
- Off Blue #5684AE ΔE 0.047
- Dusty Blue #5A86AD ΔE 0.048
- Dark Lavender #856798 ΔE 0.051
- Grey Purple #826D8C ΔE 0.051
- Faded Purple #916E99 ΔE 0.051
- Slate Gray #708090 ΔE 0.054
- Faded Blue #658CBB ΔE 0.056
Use #7578AB 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.