#4B4791
Closest named color: Blueberry (#464196). oklch(44.1% 0.118 282.8), rgb(75, 71, 145).
Aa
White text reads best on this color (8.04:1).
About this color
#4B4791 is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.118 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.021 away. White text reads best on it, at 8.04:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.60:1 |
| White text | 8.04:1 |
Values
| HEX | #4B4791 |
| RGB | rgb(75, 71, 145) |
| HSL | hsl(243, 34%, 42%) |
| OKLCH | oklch(44.1% 0.118 282.8) |
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 #4B4791 | 8.04:1 | AAA | Lc -92.4 | Preferred for body text |
| Black text on #4B4791 | 2.60:1 | Fails | Lc 16.3 | Dividers and decoration only |
| #4B4791 text on white | 8.04:1 | AAA | Lc 87.7 | Fine for body text |
| #4B4791 text on black | 2.60:1 | Fails | Lc -14.4 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E8F7
oklch(93.5% 0.02 282.9)
-
Step 200
200
#D5D6F2
oklch(88.4% 0.038 284)
-
Step 300
300
#BABCED
oklch(81% 0.069 282.9)
-
Step 400
400
#9797E4
oklch(70.7% 0.112 283.2)
-
Step 500
500
#7F7CDB
oklch(63.1% 0.14 283)
-
Step 600
600
#6963C9
oklch(55.6% 0.153 282.9)
-
Step 700
700
#5851AE
oklch(49.1% 0.144 283.1)
-
Step 800
800 (this color)
#4B4791
oklch(44.1% 0.118 282.8)
-
Step 900
900
#3C3970
oklch(37.6% 0.092 283.5)
-
Step 950
950
#232242
oklch(27.1% 0.058 283.2)
#4B4791 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) | #265394 | 0.051 |
| Deuteranopia (no green cones) | #214E8F | 0.052 |
| Tritanopia (no blue cones) | #335765 | 0.102 |
| Achromatopsia (no color) | #505050 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B4791
#4B4791
oklch(44.1% 0.118 282.8)
- #5C5400
#5C5400
oklch(44% 0.093 103.1)
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 #4B4791, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.021
- Dark Slate Blue #483D8B ΔE 0.028
- Twilight #4E518B ΔE 0.032
- Dusk #4E5481 ΔE 0.050
- Dusk Blue #26538D ΔE 0.054
- Cobalt #1E488F ΔE 0.055
- Denim Blue #3B5B92 ΔE 0.057
- Rebecca Purple #663399 ΔE 0.065
Use #4B4791 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.