#4E59A5
Closest named color: Dusky Blue (#475F94). oklch(49.3% 0.121 274.9), rgb(78, 89, 165).
Aa
White text reads best on this color (6.37:1).
About this color
#4E59A5 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.121 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.036 away. White text reads best on it, at 6.37:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.29:1 |
| White text | 6.37:1 |
Values
| HEX | #4E59A5 |
| RGB | rgb(78, 89, 165) |
| HSL | hsl(232, 36%, 48%) |
| OKLCH | oklch(49.3% 0.121 274.9) |
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 #4E59A5 | 6.37:1 | AA | Lc -86.6 | Fine for body text |
| Black text on #4E59A5 | 3.29:1 | AA large text | Lc 22.5 | Dividers and decoration only |
| #4E59A5 text on white | 6.37:1 | AA | Lc 81.5 | Fine for body text |
| #4E59A5 text on black | 3.29:1 | AA large text | Lc -20.4 | 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
#E6E9F6
oklch(93.6% 0.018 275.6)
-
Step 200
200
#D2D8EF
oklch(88.5% 0.032 274.1)
-
Step 300
300
#B5BEE7
oklch(80.8% 0.059 275.3)
-
Step 400
400
#8F9CDB
oklch(70.7% 0.094 274.8)
-
Step 500
500
#7482D1
oklch(63% 0.12 274.8)
-
Step 600
600
#5E6BBF
oklch(55.7% 0.13 274.7)
-
Step 700
700 (this color)
#4E59A5
oklch(49.3% 0.121 274.9)
-
Step 800
800
#3F4985
oklch(42.7% 0.1 274.3)
-
Step 900
900
#363D6B
oklch(37.7% 0.079 275.4)
-
Step 950
950
#1F243E
oklch(26.9% 0.049 274.4)
#4E59A5 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) | #3863A8 | 0.034 |
| Deuteranopia (no green cones) | #2F5CA3 | 0.036 |
| Tritanopia (no blue cones) | #276977 | 0.106 |
| Achromatopsia (no color) | #5F5F5F | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E59A5
#4E59A5
oklch(49.3% 0.121 274.9)
- #736000
#736000
oklch(49.3% 0.101 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 #4E59A5, closest first.
No curated palette has a color within ΔE 0.04 of #4E59A5.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.036
- Denim Blue #3B5B92 ΔE 0.041
- Twilight #4E518B ΔE 0.044
- French Blue #436BAD ΔE 0.049
- Mid Blue #276AB3 ΔE 0.056
- Dusk #4E5481 ΔE 0.058
- Iris #6258C4 ΔE 0.058
- Denim #3B638C ΔE 0.059
Use #4E59A5 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.