#4A457D
Closest named color: Dark Slate Blue (#483D8B). oklch(42.3% 0.091 285.9), rgb(74, 69, 125).
Aa
White text reads best on this color (8.61:1).
About this color
#4A457D is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.091 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.035 away. White text reads best on it, at 8.61:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.43:1 |
| White text | 8.61:1 |
Values
| HEX | #4A457D |
| RGB | rgb(74, 69, 125) |
| HSL | hsl(245, 29%, 38%) |
| OKLCH | oklch(42.3% 0.091 285.9) |
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 #4A457D | 8.61:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #4A457D | 2.43:1 | Fails | Lc 14.5 | Not readable |
| #4A457D text on white | 8.61:1 | AAA | Lc 89.5 | Fine for body text |
| #4A457D text on black | 2.43:1 | Fails | Lc -12.8 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E9F4
oklch(93.7% 0.015 286.1)
-
Step 200
200
#D7D7EC
oklch(88.6% 0.029 285.8)
-
Step 300
300
#BDBCE2
oklch(80.9% 0.053 286.3)
-
Step 400
400
#9B99D4
oklch(70.7% 0.086 285.5)
-
Step 500
500
#847FC8
oklch(63.1% 0.108 286)
-
Step 600
600
#6E67B5
oklch(55.5% 0.119 285.9)
-
Step 700
700
#5C569C
oklch(49.2% 0.11 285.5)
-
Step 800
800 (this color)
#4A457D
oklch(42.3% 0.091 285.9)
-
Step 900
900
#3E3B66
oklch(37.6% 0.072 285.5)
-
Step 950
950
#25233B
oklch(27% 0.044 286.9)
#4A457D 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) | #314D7F | 0.039 |
| Deuteranopia (no green cones) | #304A7C | 0.038 |
| Tritanopia (no blue cones) | #3C505B | 0.077 |
| Achromatopsia (no color) | #4C4C4C | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A457D
#4A457D
oklch(42.3% 0.091 285.9)
- #555000
#555000
oklch(42.3% 0.09 105.5)
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 #4A457D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.035
- Twilight #4E518B ΔE 0.039
- Dusk #4E5481 ΔE 0.044
- Blueberry #464196 ΔE 0.045
- Dusk Blue #26538D ΔE 0.057
- Cobalt #1E488F ΔE 0.060
- Dusty Grape #545775 ΔE 0.061
- Light Navy #155084 ΔE 0.062
Use #4A457D 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.