#4B4B8F
Closest named color: Twilight (#4E518B). oklch(44.7% 0.109 281), rgb(75, 75, 143).
Aa
White text reads best on this color (7.77:1).
About this color
#4B4B8F is a dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.109 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.020 away. White text reads best on it, at 7.77:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.70:1 |
| White text | 7.77:1 |
Values
| HEX | #4B4B8F |
| RGB | rgb(75, 75, 143) |
| HSL | hsl(240, 31%, 43%) |
| OKLCH | oklch(44.7% 0.109 281) |
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 #4B4B8F | 7.77:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #4B4B8F | 2.70:1 | Fails | Lc 17.2 | Dividers and decoration only |
| #4B4B8F text on white | 7.77:1 | AAA | Lc 86.8 | Fine for body text |
| #4B4B8F text on black | 2.70:1 | Fails | Lc -15.3 | 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 800.
-
Step 50
50
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F6
oklch(93.6% 0.018 279.1)
-
Step 200
200
#D4D7F1
oklch(88.5% 0.036 280.4)
-
Step 300
300
#B9BCEA
oklch(80.8% 0.065 281.9)
-
Step 400
400
#9599DF
oklch(70.7% 0.102 280.9)
-
Step 500
500
#7C7ED6
oklch(63% 0.131 281)
-
Step 600
600
#6666C3
oklch(55.6% 0.141 280.8)
-
Step 700
700
#5554A9
oklch(49.1% 0.133 280.9)
-
Step 800
800 (this color)
#4B4B8F
oklch(44.7% 0.109 281)
-
Step 900
900
#3A3B6D
oklch(37.7% 0.084 280.7)
-
Step 950
950
#222340
oklch(27.1% 0.053 280.7)
#4B4B8F 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) | #2F5592 | 0.041 |
| Deuteranopia (no green cones) | #2B508D | 0.042 |
| Tritanopia (no blue cones) | #345966 | 0.094 |
| Achromatopsia (no color) | #525252 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B4B8F
#4B4B8F
oklch(44.7% 0.109 281)
- #605500
#605500
oklch(44.6% 0.093 100.7)
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 #4B4B8F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.020
- Blueberry #464196 ΔE 0.032
- Dark Slate Blue #483D8B ΔE 0.038
- Dusk #4E5481 ΔE 0.039
- Denim Blue #3B5B92 ΔE 0.046
- Dusk Blue #26538D ΔE 0.048
- Dusky Blue #475F94 ΔE 0.055
- Light Navy Blue #2E5A88 ΔE 0.056
Use #4B4B8F 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.