#4537AB
Closest named color: Blueberry (#464196). oklch(42.8% 0.177 281.4), rgb(69, 55, 171).
Aa
White text reads best on this color (8.79:1).
About this color
#4537AB is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.177 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.042 away. White text reads best on it, at 8.79:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.177) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.38:1 |
| White text | 8.79:1 |
Values
| HEX | #4537AB |
| RGB | rgb(69, 55, 171) |
| HSL | hsl(247, 51%, 44%) |
| OKLCH | oklch(42.8% 0.177 281.4) |
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 #4537AB | 8.79:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #4537AB | 2.38:1 | Fails | Lc 14.5 | Not readable |
| #4537AB text on white | 8.79:1 | AAA | Lc 89.5 | Fine for body text |
| #4537AB text on black | 2.38:1 | Fails | Lc -12.7 | 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
#F3F5FF
oklch(97.2% 0.013 277.1)
-
Step 100
100
#E6E8FE
oklch(93.6% 0.03 281.7)
-
Step 200
200
#D2D5FF
oklch(88.4% 0.058 281.9)
-
Step 300
300
#B5B9FF
oklch(80.8% 0.099 281.4)
-
Step 400
400
#9192FF
oklch(70.7% 0.157 281.2)
-
Step 500
500
#7971FF
oklch(63% 0.204 281.3)
-
Step 600
600
#6552F3
oklch(55.6% 0.23 281.2)
-
Step 700
700
#5541D3
oklch(49.1% 0.213 281.4)
-
Step 800
800 (this color)
#4537AB
oklch(42.8% 0.177 281.4)
-
Step 900
900
#393287
oklch(37.8% 0.137 281.3)
-
Step 950
950
#211E4F
oklch(27% 0.087 281.6)
#4537AB 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) | #004FAF | 0.073 |
| Deuteranopia (no green cones) | #0046A9 | 0.066 |
| Tritanopia (no blue cones) | #00556C | 0.150 |
| Achromatopsia (no color) | #4A4A4A | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4537AB
#4537AB
oklch(42.8% 0.177 281.4)
- #5A5000
#5A5000
oklch(42.8% 0.089 101.1)
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 #4537AB, closest first.
No curated palette has a color within ΔE 0.04 of #4537AB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.042
- Sapphire #2138AB ΔE 0.048
- Majorelle Blue #3F37C9 ΔE 0.049
- Blue With A Hint Of Purple #533CC6 ΔE 0.051
- Dark Slate Blue #483D8B ΔE 0.055
- Indigo Blue #3A18B1 ΔE 0.056
- Blurple #5539CC ΔE 0.059
- Imperial Purple #480CA8 ΔE 0.061
Use #4537AB 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.