#4E5491
Closest named color: Twilight (#4E518B). oklch(47% 0.098 277.6), rgb(78, 84, 145).
Aa
White text reads best on this color (6.99:1).
About this color
#4E5491 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.098 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.012 away. White text reads best on it, at 6.99:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.00:1 |
| White text | 6.99:1 |
Values
| HEX | #4E5491 |
| RGB | rgb(78, 84, 145) |
| HSL | hsl(235, 30%, 44%) |
| OKLCH | oklch(47% 0.098 277.6) |
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 #4E5491 | 6.99:1 | AA | Lc -89.1 | Fine for body text |
| Black text on #4E5491 | 3.00:1 | AA large text | Lc 19.9 | Dividers and decoration only |
| #4E5491 text on white | 6.99:1 | AA | Lc 84.1 | Fine for body text |
| #4E5491 text on black | 3.00:1 | AA large text | Lc -17.8 | 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
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D4D8EB
oklch(88.5% 0.026 276.4)
-
Step 300
300
#B9BEE0
oklch(80.9% 0.048 278.7)
-
Step 400
400
#959CD0
oklch(70.6% 0.076 278.3)
-
Step 500
500
#7B83C4
oklch(63% 0.098 277.8)
-
Step 600
600
#656CB0
oklch(55.6% 0.105 277.9)
-
Step 700
700 (this color)
#4E5491
oklch(47% 0.098 277.6)
-
Step 800
800
#444A7B
oklch(42.7% 0.081 277.1)
-
Step 900
900
#393E63
oklch(37.7% 0.064 277)
-
Step 950
950
#22243A
oklch(26.9% 0.041 279.3)
#4E5491 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) | #3D5C93 | 0.029 |
| Deuteranopia (no green cones) | #385790 | 0.029 |
| Tritanopia (no blue cones) | #37616B | 0.088 |
| Achromatopsia (no color) | #595959 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E5491
#4E5491
oklch(47% 0.098 277.6)
- #6A5A00
#6A5A00
oklch(46.9% 0.097 97.1)
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 #4E5491, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.012
- Dusk #4E5481 ΔE 0.026
- Denim Blue #3B5B92 ΔE 0.029
- Dusky Blue #475F94 ΔE 0.031
- Light Navy Blue #2E5A88 ΔE 0.045
- Dusk Blue #26538D ΔE 0.049
- Denim #3B638C ΔE 0.049
- Dusty Grape #545775 ΔE 0.050
Use #4E5491 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.