#4D4F91
Closest named color: Twilight (#4E518B). oklch(45.8% 0.106 280), rgb(77, 79, 145).
Aa
White text reads best on this color (7.38:1).
About this color
#4D4F91 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.106 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.012 away. White text reads best on it, at 7.38:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.84:1 |
| White text | 7.38:1 |
Values
| HEX | #4D4F91 |
| RGB | rgb(77, 79, 145) |
| HSL | hsl(238, 31%, 44%) |
| OKLCH | oklch(45.8% 0.106 280) |
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 #4D4F91 | 7.38:1 | AAA | Lc -90.4 | Preferred for body text |
| Black text on #4D4F91 | 2.84:1 | Fails | Lc 18.5 | Dividers and decoration only |
| #4D4F91 text on white | 7.38:1 | AAA | Lc 85.5 | Fine for body text |
| #4D4F91 text on black | 2.84:1 | Fails | Lc -16.5 | 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
#D4D7F0
oklch(88.5% 0.034 280.2)
-
Step 300
300
#B8BDE9
oklch(80.9% 0.062 279.8)
-
Step 400
400
#949ADD
oklch(70.7% 0.098 279.6)
-
Step 500
500
#7B7FD4
oklch(63% 0.127 280.1)
-
Step 600
600
#6567C1
oklch(55.6% 0.137 280)
-
Step 700
700
#5455A7
oklch(49% 0.128 280)
-
Step 800
800 (this color)
#4D4F91
oklch(45.8% 0.106 280)
-
Step 900
900
#3A3B6C
oklch(37.6% 0.083 280.8)
-
Step 950
950
#22233F
oklch(27% 0.052 280.8)
#4D4F91 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) | #355893 | 0.037 |
| Deuteranopia (no green cones) | #305390 | 0.038 |
| Tritanopia (no blue cones) | #365D69 | 0.092 |
| Achromatopsia (no color) | #565656 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D4F91
#4D4F91
oklch(45.8% 0.106 280)
- #645800
#645800
oklch(45.8% 0.095 100.1)
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 #4D4F91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.012
- Dusk #4E5481 ΔE 0.033
- Denim Blue #3B5B92 ΔE 0.038
- Blueberry #464196 ΔE 0.042
- Dusky Blue #475F94 ΔE 0.044
- Dusk Blue #26538D ΔE 0.048
- Dark Slate Blue #483D8B ΔE 0.049
- Light Navy Blue #2E5A88 ΔE 0.051
Use #4D4F91 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.