#4D599E
Closest named color: Dusky Blue (#475F94). oklch(48.8% 0.111 274.1), rgb(77, 89, 158).
Aa
White text reads best on this color (6.48:1).
About this color
#4D599E is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.111 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.027 away. White text reads best on it, at 6.48:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.23:1 |
| White text | 6.48:1 |
Values
| HEX | #4D599E |
| RGB | rgb(77, 89, 158) |
| HSL | hsl(231, 34%, 46%) |
| OKLCH | oklch(48.8% 0.111 274.1) |
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 #4D599E | 6.48:1 | AA | Lc -87.1 | Fine for body text |
| Black text on #4D599E | 3.23:1 | AA large text | Lc 22.0 | Dividers and decoration only |
| #4D599E text on white | 6.48:1 | AA | Lc 82.0 | Fine for body text |
| #4D599E text on black | 3.23:1 | AA large text | Lc -19.9 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6E9F5
oklch(93.5% 0.016 274.8)
-
Step 200
200
#D3D8ED
oklch(88.5% 0.029 275.1)
-
Step 300
300
#B5BFE4
oklch(80.9% 0.053 273.3)
-
Step 400
400
#909DD7
oklch(70.8% 0.086 274.3)
-
Step 500
500
#7584CC
oklch(63.2% 0.11 273.9)
-
Step 600
600
#5E6CB9
oklch(55.6% 0.12 274.1)
-
Step 700
700 (this color)
#4D599E
oklch(48.8% 0.111 274.1)
-
Step 800
800
#404A81
oklch(42.8% 0.092 274.1)
-
Step 900
900
#363E67
oklch(37.7% 0.071 274.1)
-
Step 950
950
#20253D
oklch(27.2% 0.045 274.1)
#4D599E 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) | #3D62A1 | 0.029 |
| Deuteranopia (no green cones) | #355B9C | 0.029 |
| Tritanopia (no blue cones) | #2B6874 | 0.099 |
| Achromatopsia (no color) | #5E5E5E | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D599E
#4D599E
oklch(48.8% 0.111 274.1)
- #725E00
#725E00
oklch(48.7% 0.1 94.4)
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 #4D599E, closest first.
No curated palette has a color within ΔE 0.04 of #4D599E.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.027
- Denim Blue #3B5B92 ΔE 0.032
- Twilight #4E518B ΔE 0.034
- Dusk #4E5481 ΔE 0.047
- Denim #3B638C ΔE 0.050
- French Blue #436BAD ΔE 0.051
- Light Navy Blue #2E5A88 ΔE 0.053
- Dusk Blue #26538D ΔE 0.058
Use #4D599E 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.