#4A539B
Closest named color: Twilight (#4E518B). oklch(47.1% 0.116 275.7), rgb(74, 83, 155).
Aa
White text reads best on this color (6.99:1).
About this color
#4A539B is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.116 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.026 away. White text reads best on it, at 6.99:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.00:1 |
| White text | 6.99:1 |
Values
| HEX | #4A539B |
| RGB | rgb(74, 83, 155) |
| HSL | hsl(233, 35%, 45%) |
| OKLCH | oklch(47.1% 0.116 275.7) |
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 #4A539B | 6.99:1 | AA | Lc -89.0 | Fine for body text |
| Black text on #4A539B | 3.00:1 | AA large text | Lc 20.0 | Dividers and decoration only |
| #4A539B text on white | 6.99:1 | AA | Lc 84.1 | Fine for body text |
| #4A539B text on black | 3.00:1 | AA large text | Lc -17.9 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F5
oklch(93.5% 0.016 274.8)
-
Step 200
200
#D3D8EE
oklch(88.5% 0.031 275.6)
-
Step 300
300
#B6BEE5
oklch(80.8% 0.056 276)
-
Step 400
400
#919CD9
oklch(70.7% 0.09 276)
-
Step 500
500
#7683CE
oklch(63.1% 0.114 275.2)
-
Step 600
600
#606BBB
oklch(55.6% 0.124 275.7)
-
Step 700
700 (this color)
#4A539B
oklch(47.1% 0.116 275.7)
-
Step 800
800
#414983
oklch(42.7% 0.096 275.6)
-
Step 900
900
#373D69
oklch(37.6% 0.075 276.3)
-
Step 950
950
#20243D
oklch(26.9% 0.047 275.9)
#4A539B 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) | #345D9E | 0.035 |
| Deuteranopia (no green cones) | #2C5699 | 0.036 |
| Tritanopia (no blue cones) | #27636F | 0.104 |
| Achromatopsia (no color) | #595959 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A539B
#4A539B
oklch(47.1% 0.116 275.7)
- #6C5A00
#6C5A00
oklch(47.1% 0.097 95.5)
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 #4A539B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.026
- Denim Blue #3B5B92 ΔE 0.034
- Dusky Blue #475F94 ΔE 0.038
- Dusk #4E5481 ΔE 0.044
- Blueberry #464196 ΔE 0.049
- Dusk Blue #26538D ΔE 0.049
- Light Navy Blue #2E5A88 ΔE 0.052
- Denim #3B638C ΔE 0.058
Use #4A539B 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.