#4F5FA0
Closest named color: Dusky Blue (#475F94). oklch(50.3% 0.105 271.7), rgb(79, 95, 160).
Aa
White text reads best on this color (6.03:1).
About this color
#4F5FA0 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.105 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.023 away. White text reads best on it, at 6.03:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.47:1 |
| White text | 6.03:1 |
Values
| HEX | #4F5FA0 |
| RGB | rgb(79, 95, 160) |
| HSL | hsl(228, 34%, 47%) |
| OKLCH | oklch(50.3% 0.105 271.7) |
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 #4F5FA0 | 6.03:1 | AA | Lc -85.2 | Fine for body text |
| Black text on #4F5FA0 | 3.47:1 | AA large text | Lc 24.0 | Dividers and decoration only |
| #4F5FA0 text on white | 6.03:1 | AA | Lc 80.1 | Fine for body text |
| #4F5FA0 text on black | 3.47:1 | AA large text | Lc -21.8 | 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
#E6E9F4
oklch(93.5% 0.015 273.8)
-
Step 200
200
#D2D9ED
oklch(88.6% 0.029 270.4)
-
Step 300
300
#B5BFE2
oklch(80.8% 0.051 272.7)
-
Step 400
400
#8E9ED4
oklch(70.7% 0.081 271.5)
-
Step 500
500
#7385C9
oklch(63.1% 0.105 271.8)
-
Step 600
600
#5C6EB5
oklch(55.6% 0.112 271.6)
-
Step 700
700 (this color)
#4F5FA0
oklch(50.3% 0.105 271.7)
-
Step 800
800
#3E4B7F
oklch(42.7% 0.088 271.6)
-
Step 900
900
#353F66
oklch(37.8% 0.068 271.9)
-
Step 950
950
#1F253C
oklch(27% 0.044 272.1)
#4F5FA0 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) | #4566A3 | 0.021 |
| Deuteranopia (no green cones) | #3D5F9F | 0.022 |
| Tritanopia (no blue cones) | #2D6D78 | 0.094 |
| Achromatopsia (no color) | #636363 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F5FA0
#4F5FA0
oklch(50.3% 0.105 271.7)
- #796100
#796100
oklch(50.2% 0.103 91.9)
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 #4F5FA0, closest first.
No curated palette has a color within ΔE 0.04 of #4F5FA0.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.023
- French Blue #436BAD ΔE 0.036
- Denim Blue #3B5B92 ΔE 0.037
- Denim #3B638C ΔE 0.045
- Twilight #4E518B ΔE 0.047
- Mid Blue #276AB3 ΔE 0.050
- Dusk #4E5481 ΔE 0.054
- Muted Blue #3B719F ΔE 0.054
Use #4F5FA0 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.