#4F5CA8
Closest named color: Dusky Blue (#475F94). oklch(50.2% 0.121 273.9), rgb(79, 92, 168).
Aa
White text reads best on this color (6.12:1).
About this color
#4F5CA8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.121 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.037 away. White text reads best on it, at 6.12:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.42:1 |
| White text | 6.12:1 |
Values
| HEX | #4F5CA8 |
| RGB | rgb(79, 92, 168) |
| HSL | hsl(231, 36%, 48%) |
| OKLCH | oklch(50.2% 0.121 273.9) |
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 #4F5CA8 | 6.12:1 | AA | Lc -85.6 | Fine for body text |
| Black text on #4F5CA8 | 3.42:1 | AA large text | Lc 23.6 | Dividers and decoration only |
| #4F5CA8 text on white | 6.12:1 | AA | Lc 80.4 | Fine for body text |
| #4F5CA8 text on black | 3.42:1 | AA large text | Lc -21.4 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F6
oklch(93.6% 0.018 275.6)
-
Step 200
200
#D2D8EF
oklch(88.5% 0.032 274.1)
-
Step 300
300
#B4BFE7
oklch(81% 0.058 273)
-
Step 400
400
#8E9CDB
oklch(70.6% 0.094 274.1)
-
Step 500
500
#7383D2
oklch(63.1% 0.12 273.8)
-
Step 600
600
#5C6BBF
oklch(55.6% 0.131 273.8)
-
Step 700
700 (this color)
#4F5CA8
oklch(50.2% 0.121 273.9)
-
Step 800
800
#3E4985
oklch(42.7% 0.1 273.6)
-
Step 900
900
#353D6B
oklch(37.6% 0.079 274.5)
-
Step 950
950
#1F243F
oklch(27% 0.051 274.5)
#4F5CA8 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) | #3B66AB | 0.033 |
| Deuteranopia (no green cones) | #325EA6 | 0.034 |
| Tritanopia (no blue cones) | #276C7A | 0.106 |
| Achromatopsia (no color) | #626262 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F5CA8
#4F5CA8
oklch(50.2% 0.121 273.9)
- #776200
#776200
oklch(50.2% 0.103 94.3)
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 #4F5CA8, closest first.
No curated palette has a color within ΔE 0.04 of #4F5CA8.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.037
- French Blue #436BAD ΔE 0.041
- Denim Blue #3B5B92 ΔE 0.045
- Mid Blue #276AB3 ΔE 0.050
- Twilight #4E518B ΔE 0.051
- Iris #6258C4 ΔE 0.054
- Denim #3B638C ΔE 0.059
- Dusk #4E5481 ΔE 0.063
Use #4F5CA8 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.