#4B4587
Closest named color: Dark Slate Blue (#483D8B). oklch(43% 0.106 285.1), rgb(75, 69, 135).
Aa
White text reads best on this color (8.39:1).
About this color
#4B4587 is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.106 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.024 away. White text reads best on it, at 8.39:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.50:1 |
| White text | 8.39:1 |
Values
| HEX | #4B4587 |
| RGB | rgb(75, 69, 135) |
| HSL | hsl(245, 32%, 40%) |
| OKLCH | oklch(43% 0.106 285.1) |
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 #4B4587 | 8.39:1 | AAA | Lc -93.4 | Preferred for body text |
| Black text on #4B4587 | 2.50:1 | Fails | Lc 15.2 | Dividers and decoration only |
| #4B4587 text on white | 8.39:1 | AAA | Lc 88.8 | Fine for body text |
| #4B4587 text on black | 2.50:1 | Fails | Lc -13.4 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E8E8F6
oklch(93.5% 0.019 286)
-
Step 200
200
#D6D6F0
oklch(88.4% 0.036 285.7)
-
Step 300
300
#BCBCE8
oklch(81% 0.062 284.9)
-
Step 400
400
#9A98DC
oklch(70.7% 0.099 284.9)
-
Step 500
500
#827DD3
oklch(63.1% 0.127 284.8)
-
Step 600
600
#6D64C0
oklch(55.5% 0.139 285.4)
-
Step 700
700
#5B53A6
oklch(49.2% 0.129 285)
-
Step 800
800 (this color)
#4B4587
oklch(43% 0.106 285.1)
-
Step 900
900
#3E3A6B
oklch(37.7% 0.082 285.5)
-
Step 950
950
#24223F
oklch(27% 0.053 285.4)
#4B4587 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) | #2B4F89 | 0.047 |
| Deuteranopia (no green cones) | #294B85 | 0.047 |
| Tritanopia (no blue cones) | #39535F | 0.092 |
| Achromatopsia (no color) | #4D4D4D | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B4587
#4B4587
oklch(43% 0.106 285.1)
- #575200
#575200
oklch(43% 0.091 105.6)
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 #4B4587, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.024
- Blueberry #464196 ΔE 0.030
- Twilight #4E518B ΔE 0.034
- Dusk #4E5481 ΔE 0.047
- Dusk Blue #26538D ΔE 0.055
- Cobalt #1E488F ΔE 0.056
- Denim Blue #3B5B92 ΔE 0.062
- Light Navy #155084 ΔE 0.064
Use #4B4587 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.