#596EB5
Closest named color: French Blue (#436BAD). oklch(55.4% 0.113 270), rgb(89, 110, 181).
Aa
White text reads best on this color (4.85:1).
About this color
#596EB5 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.113 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.031 away. White text reads best on it, at 4.85:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.113) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 4.32:1 |
| White text | 4.85:1 |
Values
| HEX | #596EB5 |
| RGB | rgb(89, 110, 181) |
| HSL | hsl(226, 38%, 53%) |
| OKLCH | oklch(55.4% 0.113 270) |
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 #596EB5 | 4.85:1 | AA | Lc -79.0 | Fine for body text |
| Black text on #596EB5 | 4.32:1 | AA large text | Lc 30.5 | Non-text elements, placeholder text |
| #596EB5 text on white | 4.85:1 | AA | Lc 73.6 | Content text, not long reading |
| #596EB5 text on black | 4.32:1 | AA large text | Lc -28.1 | 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 600.
-
Step 50
50
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E6EAF4
oklch(93.7% 0.014 268.5)
-
Step 200
200
#D2D9ED
oklch(88.6% 0.029 270.4)
-
Step 300
300
#B3C0E3
oklch(80.9% 0.052 269.2)
-
Step 400
400
#8D9ED4
oklch(70.6% 0.082 270.7)
-
Step 500
500
#7186C9
oklch(63.2% 0.104 270)
-
Step 600
600 (this color)
#596EB5
oklch(55.4% 0.113 270)
-
Step 700
700
#4A5C9C
oklch(49.1% 0.105 270.3)
-
Step 800
800
#3C4C7F
oklch(42.8% 0.087 269.3)
-
Step 900
900
#333F66
oklch(37.6% 0.069 269.9)
-
Step 950
950
#1E253C
oklch(27% 0.044 270.3)
#596EB5 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) | #5276B8 | 0.022 |
| Deuteranopia (no green cones) | #486EB3 | 0.021 |
| Tritanopia (no blue cones) | #317D89 | 0.101 |
| Achromatopsia (no color) | #717171 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #596EB5
#596EB5
oklch(55.4% 0.113 270)
- #8D6F00
#8D6F00
oklch(55.5% 0.113 89.9)
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 #596EB5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.031
- Windows Blue #3778BF ΔE 0.041
- Flat Blue #3C73A8 ΔE 0.042
- Muted Blue #3B719F ΔE 0.052
- Dull Blue #49759C ΔE 0.052
- Mid Blue #276AB3 ΔE 0.053
- Steel Blue #4682B4 ΔE 0.058
- Cool Blue #4984B8 ΔE 0.061
Use #596EB5 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.