#596BB4
Closest named color: French Blue (#436BAD). oklch(54.7% 0.116 271.7), rgb(89, 107, 180).
Aa
White text reads best on this color (5.01:1).
About this color
#596BB4 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.116 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.029 away. White text reads best on it, at 5.01:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 4.18:1 |
| White text | 5.01:1 |
Values
| HEX | #596BB4 |
| RGB | rgb(89, 107, 180) |
| HSL | hsl(228, 38%, 53%) |
| OKLCH | oklch(54.7% 0.116 271.7) |
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 #596BB4 | 5.01:1 | AA | Lc -79.9 | Fine for body text |
| Black text on #596BB4 | 4.18:1 | AA large text | Lc 29.5 | Dividers and decoration only |
| #596BB4 text on white | 5.01:1 | AA | Lc 74.5 | Content text, not long reading |
| #596BB4 text on black | 4.18:1 | AA large text | Lc -27.2 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6E9F4
oklch(93.5% 0.015 273.8)
-
Step 200
200
#D2D9ED
oklch(88.6% 0.029 270.4)
-
Step 300
300
#B4BFE3
oklch(80.8% 0.052 271.8)
-
Step 400
400
#8E9ED5
oklch(70.7% 0.083 271.6)
-
Step 500
500
#7285CA
oklch(63.1% 0.107 271.4)
-
Step 600
600 (this color)
#596BB4
oklch(54.7% 0.116 271.7)
-
Step 700
700
#4B5B9D
oklch(49% 0.107 271.7)
-
Step 800
800
#3E4B80
oklch(42.8% 0.089 271.8)
-
Step 900
900
#343F66
oklch(37.7% 0.069 270.9)
-
Step 950
950
#1F253C
oklch(27% 0.044 272.1)
#596BB4 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) | #4E73B7 | 0.023 |
| Deuteranopia (no green cones) | #456CB2 | 0.024 |
| Tritanopia (no blue cones) | #337B87 | 0.104 |
| Achromatopsia (no color) | #6F6F6F | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #596BB4
#596BB4
oklch(54.7% 0.116 271.7)
- #896E00
#896E00
oklch(54.9% 0.112 91.7)
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 #596BB4, closest first.
No curated palette has a color within ΔE 0.04 of #596BB4.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.029
- Flat Blue #3C73A8 ΔE 0.044
- Windows Blue #3778BF ΔE 0.046
- Mid Blue #276AB3 ΔE 0.051
- Muted Blue #3B719F ΔE 0.053
- Dull Blue #49759C ΔE 0.056
- Iris #6258C4 ΔE 0.058
- Dark Periwinkle #665FD1 ΔE 0.060
Use #596BB4 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.