#4F457E
Closest named color: Dark Slate Blue (#483D8B). oklch(42.8% 0.093 290), rgb(79, 69, 126).
Aa
White text reads best on this color (8.45:1).
About this color
#4F457E is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.093 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.036 away. White text reads best on it, at 8.45:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.48:1 |
| White text | 8.45:1 |
Values
| HEX | #4F457E |
| RGB | rgb(79, 69, 126) |
| HSL | hsl(251, 29%, 38%) |
| OKLCH | oklch(42.8% 0.093 290) |
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 #4F457E | 8.45:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #4F457E | 2.48:1 | Fails | Lc 15.0 | Not readable |
| #4F457E text on white | 8.45:1 | AAA | Lc 89.0 | Fine for body text |
| #4F457E text on black | 2.48:1 | Fails | Lc -13.2 | 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
#E9E8F4
oklch(93.5% 0.016 289.9)
-
Step 200
200
#D8D6EC
oklch(88.4% 0.03 289.9)
-
Step 300
300
#BFBBE2
oklch(80.8% 0.055 289.8)
-
Step 400
400
#9F98D3
oklch(70.7% 0.086 289.5)
-
Step 500
500
#897DC8
oklch(63.1% 0.111 290.2)
-
Step 600
600
#7365B4
oklch(55.5% 0.12 290.1)
-
Step 700
700
#61549B
oklch(49.2% 0.111 290.1)
-
Step 800
800 (this color)
#4F457E
oklch(42.8% 0.093 290)
-
Step 900
900
#413A65
oklch(37.6% 0.072 289.9)
-
Step 950
950
#26223B
oklch(26.9% 0.046 290.3)
#4F457E 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) | #324E80 | 0.045 |
| Deuteranopia (no green cones) | #324C7D | 0.044 |
| Tritanopia (no blue cones) | #43505B | 0.078 |
| Achromatopsia (no color) | #4D4D4D | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F457E
#4F457E
oklch(42.8% 0.093 290)
- #535302
#535302
oklch(42.8% 0.092 109.7)
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 #4F457E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.036
- Twilight #4E518B ΔE 0.036
- Dusk #4E5481 ΔE 0.042
- Blueberry #464196 ΔE 0.045
- Dusty Grape #545775 ΔE 0.060
- Dusk Blue #26538D ΔE 0.062
- Denim Blue #3B5B92 ΔE 0.066
- Cobalt #1E488F ΔE 0.067
Use #4F457E 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.