#4D5FA5
Closest named color: Dusky Blue (#475F94). oklch(50.5% 0.113 271), rgb(77, 95, 165).
Aa
White text reads best on this color (6.00:1).
About this color
#4D5FA5 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.113 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.029 away. White text reads best on it, at 6.00:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.113) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.49:1 |
| White text | 6.00:1 |
Values
| HEX | #4D5FA5 |
| RGB | rgb(77, 95, 165) |
| HSL | hsl(228, 36%, 47%) |
| OKLCH | oklch(50.5% 0.113 271) |
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 #4D5FA5 | 6.00:1 | AA | Lc -85.1 | Fine for body text |
| Black text on #4D5FA5 | 3.49:1 | AA large text | Lc 24.2 | Dividers and decoration only |
| #4D5FA5 text on white | 6.00:1 | AA | Lc 79.9 | Fine for body text |
| #4D5FA5 text on black | 3.49:1 | AA large text | Lc -21.9 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E6EAF5
oklch(93.7% 0.015 270)
-
Step 200
200
#D1D9EE
oklch(88.6% 0.03 269.1)
-
Step 300
300
#B3BFE5
oklch(80.8% 0.055 271.4)
-
Step 400
400
#8C9ED8
oklch(70.7% 0.088 270.8)
-
Step 500
500
#7085CD
oklch(63.1% 0.111 270.6)
-
Step 600
600
#596DBA
oklch(55.5% 0.122 271)
-
Step 700
700 (this color)
#4D5FA5
oklch(50.5% 0.113 271)
-
Step 800
800
#3C4B82
oklch(42.8% 0.093 270.6)
-
Step 900
900
#333F68
oklch(37.7% 0.072 270.3)
-
Step 950
950
#1E253D
oklch(27% 0.046 270.7)
#4D5FA5 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) | #4267A8 | 0.024 |
| Deuteranopia (no green cones) | #385FA3 | 0.025 |
| Tritanopia (no blue cones) | #236E7A | 0.101 |
| Achromatopsia (no color) | #636363 | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D5FA5
#4D5FA5
oklch(50.5% 0.113 271)
- #7B6100
#7B6100
oklch(50.4% 0.103 90.4)
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 #4D5FA5, closest first.
No curated palette has a color within ΔE 0.04 of #4D5FA5.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.029
- French Blue #436BAD ΔE 0.033
- Denim Blue #3B5B92 ΔE 0.040
- Mid Blue #276AB3 ΔE 0.045
- Denim #3B638C ΔE 0.050
- Twilight #4E518B ΔE 0.052
- Muted Blue #3B719F ΔE 0.056
- Flat Blue #3C73A8 ΔE 0.056
Use #4D5FA5 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.