#4D519F
Closest named color: Twilight (#4E518B). oklch(47.2% 0.124 278.3), rgb(77, 81, 159).
Aa
White text reads best on this color (7.01:1).
About this color
#4D519F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.124 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.033 away. White text reads best on it, at 7.01:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.124) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.99:1 |
| White text | 7.01:1 |
Values
| HEX | #4D519F |
| RGB | rgb(77, 81, 159) |
| HSL | hsl(237, 35%, 46%) |
| OKLCH | oklch(47.2% 0.124 278.3) |
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 #4D519F | 7.01:1 | AAA | Lc -89.1 | Fine for body text |
| Black text on #4D519F | 2.99:1 | Fails | Lc 19.9 | Dividers and decoration only |
| #4D519F text on white | 7.01:1 | AAA | Lc 84.1 | Fine for body text |
| #4D519F text on black | 2.99:1 | Fails | Lc -17.9 | 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 700.
-
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
#B7BDE8
oklch(80.8% 0.061 278.7)
-
Step 400
400
#939BDC
oklch(70.8% 0.095 278.3)
-
Step 500
500
#7981D2
oklch(63.2% 0.122 278)
-
Step 600
600
#6369BF
oklch(55.7% 0.132 278.2)
-
Step 700
700 (this color)
#4D519F
oklch(47.2% 0.124 278.3)
-
Step 800
800
#434786
oklch(42.7% 0.103 278.3)
-
Step 900
900
#383C6B
oklch(37.6% 0.08 278.1)
-
Step 950
950
#21233F
oklch(26.9% 0.052 279.2)
#4D519F 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) | #2E5CA2 | 0.043 |
| Deuteranopia (no green cones) | #26569D | 0.045 |
| Tritanopia (no blue cones) | #2C6270 | 0.109 |
| Achromatopsia (no color) | #595959 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D519F
#4D519F
oklch(47.2% 0.124 278.3)
- #6A5B00
#6A5B00
oklch(47.2% 0.097 98)
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 #4D519F, closest first.
No curated palette has a color within ΔE 0.04 of #4D519F.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.033
- Denim Blue #3B5B92 ΔE 0.043
- Blueberry #464196 ΔE 0.045
- Dusky Blue #475F94 ΔE 0.046
- Dusk #4E5481 ΔE 0.052
- Dusk Blue #26538D ΔE 0.057
- Dark Slate Blue #483D8B ΔE 0.060
- Light Navy Blue #2E5A88 ΔE 0.061
Use #4D519F 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.