#4D508E
Closest named color: Twilight (#4E518B). oklch(45.9% 0.1 279.6), rgb(77, 80, 142).
Aa
White text reads best on this color (7.35:1).
About this color
#4D508E is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.100 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.006 away. White text reads best on it, at 7.35:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.85:1 |
| White text | 7.35:1 |
Values
| HEX | #4D508E |
| RGB | rgb(77, 80, 142) |
| HSL | hsl(237, 30%, 43%) |
| OKLCH | oklch(45.9% 0.1 279.6) |
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 #4D508E | 7.35:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #4D508E | 2.85:1 | Fails | Lc 18.6 | Dividers and decoration only |
| #4D508E text on white | 7.35:1 | AAA | Lc 85.5 | Fine for body text |
| #4D508E text on black | 2.85:1 | Fails | Lc -16.6 | 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
#E7E9F5
oklch(93.6% 0.016 278.5)
-
Step 200
200
#D4D7EF
oklch(88.4% 0.033 280)
-
Step 300
300
#B8BDE7
oklch(80.9% 0.059 279.7)
-
Step 400
400
#949ADA
oklch(70.6% 0.094 279.6)
-
Step 500
500
#7B80D0
oklch(63% 0.12 279.7)
-
Step 600
600
#6568BD
oklch(55.5% 0.13 279.7)
-
Step 700
700
#5457A3
oklch(49.2% 0.12 279.3)
-
Step 800
800 (this color)
#4D508E
oklch(45.9% 0.1 279.6)
-
Step 900
900
#3A3C6A
oklch(37.7% 0.078 280.1)
-
Step 950
950
#22233E
oklch(26.9% 0.05 280.9)
#4D508E 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) | #395890 | 0.032 |
| Deuteranopia (no green cones) | #34538D | 0.033 |
| Tritanopia (no blue cones) | #375D68 | 0.088 |
| Achromatopsia (no color) | #565656 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D508E
#4D508E
oklch(45.9% 0.1 279.6)
- #655800
#655800
oklch(45.9% 0.095 99.3)
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 #4D508E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.006
- Dusk #4E5481 ΔE 0.027
- Denim Blue #3B5B92 ΔE 0.036
- Dusky Blue #475F94 ΔE 0.041
- Blueberry #464196 ΔE 0.047
- Dusk Blue #26538D ΔE 0.047
- Light Navy Blue #2E5A88 ΔE 0.047
- Dusty Grape #545775 ΔE 0.052
Use #4D508E 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.