#4D508F
Closest named color: Twilight (#4E518B). oklch(45.9% 0.101 279.5), rgb(77, 80, 143).
Aa
White text reads best on this color (7.34:1).
About this color
#4D508F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.101 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.008 away. White text reads best on it, at 7.34:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.85:1 |
| White text | 7.34:1 |
Values
| HEX | #4D508F |
| RGB | rgb(77, 80, 143) |
| HSL | hsl(237, 30%, 43%) |
| OKLCH | oklch(45.9% 0.101 279.5) |
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 #4D508F | 7.34:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #4D508F | 2.85:1 | Fails | Lc 18.6 | Dividers and decoration only |
| #4D508F text on white | 7.34:1 | AAA | Lc 85.4 | Fine for body text |
| #4D508F 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 700.
-
Step 50
50
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E8E9F4
oklch(93.6% 0.015 281.9)
-
Step 200
200
#D5D8EB
oklch(88.6% 0.026 278.7)
-
Step 300
300
#B9BEE1
oklch(80.9% 0.05 278.8)
-
Step 400
400
#969CD1
oklch(70.7% 0.078 279.2)
-
Step 500
500
#7D82C5
oklch(63% 0.101 279.8)
-
Step 600
600
#676BB2
oklch(55.6% 0.109 279.8)
-
Step 700
700 (this color)
#4D508F
oklch(45.9% 0.101 279.5)
-
Step 800
800
#46497C
oklch(42.7% 0.084 279.6)
-
Step 900
900
#3B3D64
oklch(37.7% 0.066 280.5)
-
Step 950
950
#22243A
oklch(26.9% 0.041 279.3)
#4D508F 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) | #385991 | 0.034 |
| Deuteranopia (no green cones) | #33548E | 0.034 |
| Tritanopia (no blue cones) | #375D68 | 0.089 |
| Achromatopsia (no color) | #565656 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D508F
#4D508F
oklch(45.9% 0.101 279.5)
- #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 #4D508F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.008
- Dusk #4E5481 ΔE 0.028
- Denim Blue #3B5B92 ΔE 0.036
- Dusky Blue #475F94 ΔE 0.041
- Blueberry #464196 ΔE 0.046
- Dusk Blue #26538D ΔE 0.047
- Light Navy Blue #2E5A88 ΔE 0.048
- Dark Slate Blue #483D8B ΔE 0.052
Use #4D508F 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.