#4E5791
Closest named color: Twilight (#4E518B). oklch(47.6% 0.094 275.6), rgb(78, 87, 145).
Aa
White text reads best on this color (6.78:1).
About this color
#4E5791 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.094 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.018 away. White text reads best on it, at 6.78:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.09:1 |
| White text | 6.78:1 |
Values
| HEX | #4E5791 |
| RGB | rgb(78, 87, 145) |
| HSL | hsl(232, 30%, 44%) |
| OKLCH | oklch(47.6% 0.094 275.6) |
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 #4E5791 | 6.78:1 | AA | Lc -88.3 | Fine for body text |
| Black text on #4E5791 | 3.09:1 | AA large text | Lc 20.7 | Dividers and decoration only |
| #4E5791 text on white | 6.78:1 | AA | Lc 83.3 | Fine for body text |
| #4E5791 text on black | 3.09:1 | AA large text | Lc -18.6 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D4D8EA
oklch(88.5% 0.025 275.9)
-
Step 300
300
#B8BFDF
oklch(81% 0.046 275.6)
-
Step 400
400
#939DCE
oklch(70.6% 0.073 275.4)
-
Step 500
500
#7A85C2
oklch(63.2% 0.093 275.6)
-
Step 600
600
#636DAE
oklch(55.5% 0.102 275.9)
-
Step 700
700 (this color)
#4E5791
oklch(47.6% 0.094 275.6)
-
Step 800
800
#434B79
oklch(42.7% 0.077 275.2)
-
Step 900
900
#383F62
oklch(37.8% 0.061 274.5)
-
Step 950
950
#212539
oklch(27% 0.038 274.9)
#4E5791 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) | #425E93 | 0.023 |
| Deuteranopia (no green cones) | #3C5990 | 0.024 |
| Tritanopia (no blue cones) | #37636D | 0.083 |
| Achromatopsia (no color) | #5B5B5B | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E5791
#4E5791
oklch(47.6% 0.094 275.6)
- #6D5B0A
#6D5B0A
oklch(47.5% 0.094 94.9)
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 #4E5791, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.018
- Dusky Blue #475F94 ΔE 0.023
- Denim Blue #3B5B92 ΔE 0.025
- Dusk #4E5481 ΔE 0.026
- Denim #3B638C ΔE 0.042
- Light Navy Blue #2E5A88 ΔE 0.043
- Dusty Grape #545775 ΔE 0.047
- YInMn Blue #415A77 ΔE 0.050
Use #4E5791 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.