#4F609F
Closest named color: Dusky Blue (#475F94). oklch(50.5% 0.103 270.9), rgb(79, 96, 159).
Aa
White text reads best on this color (5.98:1).
About this color
#4F609F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.103 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.021 away. White text reads best on it, at 5.98:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.50:1 |
| White text | 5.98:1 |
Values
| HEX | #4F609F |
| RGB | rgb(79, 96, 159) |
| HSL | hsl(227, 34%, 47%) |
| OKLCH | oklch(50.5% 0.103 270.9) |
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 #4F609F | 5.98:1 | AA | Lc -85.0 | Fine for body text |
| Black text on #4F609F | 3.50:1 | AA large text | Lc 24.2 | Dividers and decoration only |
| #4F609F text on white | 5.98:1 | AA | Lc 79.8 | Fine for body text |
| #4F609F text on black | 3.50:1 | AA large text | Lc -22.0 | 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
#E6EAF4
oklch(93.7% 0.014 268.5)
-
Step 200
200
#D2D9EC
oklch(88.6% 0.027 269.6)
-
Step 300
300
#B4C0E2
oklch(81% 0.05 269.9)
-
Step 400
400
#8E9ED3
oklch(70.6% 0.08 271.3)
-
Step 500
500
#7386C7
oklch(63.2% 0.101 270.9)
-
Step 600
600
#5C6EB4
oklch(55.6% 0.111 271.5)
-
Step 700
700 (this color)
#4F609F
oklch(50.5% 0.103 270.9)
-
Step 800
800
#3E4B7D
oklch(42.6% 0.085 271.4)
-
Step 900
900
#353F65
oklch(37.7% 0.067 271.7)
-
Step 950
950
#1F253B
oklch(27% 0.042 271.7)
#4F609F 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) | #4867A1 | 0.020 |
| Deuteranopia (no green cones) | #3F609E | 0.020 |
| Tritanopia (no blue cones) | #2E6D78 | 0.091 |
| Achromatopsia (no color) | #636363 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F609F
#4F609F
oklch(50.5% 0.103 270.9)
- #7A6102
#7A6102
oklch(50.3% 0.102 91)
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 #4F609F, closest first.
No curated palette has a color within ΔE 0.04 of #4F609F.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.021
- French Blue #436BAD ΔE 0.035
- Denim Blue #3B5B92 ΔE 0.036
- Denim #3B638C ΔE 0.042
- Twilight #4E518B ΔE 0.048
- Mid Blue #276AB3 ΔE 0.050
- Muted Blue #3B719F ΔE 0.051
- Dusk #4E5481 ΔE 0.054
Use #4F609F 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.