#4A539D
Closest named color: Twilight (#4E518B). oklch(47.2% 0.119 275.7), rgb(74, 83, 157).
Aa
White text reads best on this color (6.96:1).
About this color
#4A539D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.119 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.029 away. White text reads best on it, at 6.96:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.01:1 |
| White text | 6.96:1 |
Values
| HEX | #4A539D |
| RGB | rgb(74, 83, 157) |
| HSL | hsl(233, 36%, 45%) |
| OKLCH | oklch(47.2% 0.119 275.7) |
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 #4A539D | 6.96:1 | AA | Lc -88.9 | Fine for body text |
| Black text on #4A539D | 3.01:1 | AA large text | Lc 20.1 | Dividers and decoration only |
| #4A539D text on white | 6.96:1 | AA | Lc 83.9 | Fine for body text |
| #4A539D text on black | 3.01:1 | AA large text | Lc -18.0 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F5
oklch(93.5% 0.016 274.8)
-
Step 200
200
#D3D8EF
oklch(88.5% 0.032 276)
-
Step 300
300
#B6BEE6
oklch(80.9% 0.057 276.2)
-
Step 400
400
#909CDA
oklch(70.7% 0.092 275.4)
-
Step 500
500
#7682D0
oklch(63% 0.118 275.8)
-
Step 600
600
#5F6BBD
oklch(55.7% 0.127 275.2)
-
Step 700
700 (this color)
#4A539D
oklch(47.2% 0.119 275.7)
-
Step 800
800
#414984
oklch(42.8% 0.098 275.7)
-
Step 900
900
#373D6A
oklch(37.7% 0.077 276.3)
-
Step 950
950
#20243E
oklch(27% 0.049 276)
#4A539D 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) | #325DA0 | 0.036 |
| Deuteranopia (no green cones) | #2A569B | 0.037 |
| Tritanopia (no blue cones) | #266370 | 0.105 |
| Achromatopsia (no color) | #595959 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A539D
#4A539D
oklch(47.2% 0.119 275.7)
- #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 #4A539D, closest first.
No curated palette has a color within ΔE 0.04 of #4A539D.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.029
- Denim Blue #3B5B92 ΔE 0.035
- Dusky Blue #475F94 ΔE 0.039
- Dusk #4E5481 ΔE 0.047
- Blueberry #464196 ΔE 0.049
- Dusk Blue #26538D ΔE 0.051
- Light Navy Blue #2E5A88 ΔE 0.054
- Denim #3B638C ΔE 0.060
Use #4A539D 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.