#4F548B
Closest named color: Twilight (#4E518B). oklch(46.7% 0.089 278.4), rgb(79, 84, 139).
Aa
White text reads best on this color (7.06:1).
About this color
#4F548B is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.089 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.009 away. White text reads best on it, at 7.06:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.97:1 |
| White text | 7.06:1 |
Values
| HEX | #4F548B |
| RGB | rgb(79, 84, 139) |
| HSL | hsl(235, 28%, 43%) |
| OKLCH | oklch(46.7% 0.089 278.4) |
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 #4F548B | 7.06:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #4F548B | 2.97:1 | Fails | Lc 19.6 | Dividers and decoration only |
| #4F548B text on white | 7.06:1 | AAA | Lc 84.4 | Fine for body text |
| #4F548B text on black | 2.97:1 | Fails | Lc -17.6 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E8E9F2
oklch(93.6% 0.012 281.1)
-
Step 200
200
#D5D8E9
oklch(88.5% 0.023 277.9)
-
Step 300
300
#BABEDD
oklch(80.8% 0.044 279.6)
-
Step 400
400
#969DCC
oklch(70.7% 0.069 277.9)
-
Step 500
500
#7D84BE
oklch(63.1% 0.088 278.3)
-
Step 600
600
#676DAB
oklch(55.6% 0.096 278.6)
-
Step 700
700 (this color)
#4F548B
oklch(46.7% 0.089 278.4)
-
Step 800
800
#464A77
oklch(42.6% 0.075 278.9)
-
Step 900
900
#3B3E60
oklch(37.7% 0.058 279.3)
-
Step 950
950
#222538
oklch(27.1% 0.036 276.8)
#4F548B 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) | #415B8D | 0.025 |
| Deuteranopia (no green cones) | #3D568A | 0.025 |
| Tritanopia (no blue cones) | #3C5F69 | 0.078 |
| Achromatopsia (no color) | #585858 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F548B
#4F548B
oklch(46.7% 0.089 278.4)
- #675A12
#675A12
oklch(46.7% 0.089 98.3)
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 #4F548B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.009
- Dusk #4E5481 ΔE 0.017
- Denim Blue #3B5B92 ΔE 0.031
- Dusky Blue #475F94 ΔE 0.032
- Dusty Grape #545775 ΔE 0.040
- Light Navy Blue #2E5A88 ΔE 0.043
- YInMn Blue #415A77 ΔE 0.046
- Denim #3B638C ΔE 0.047
Use #4F548B 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.