#596CAF
Closest named color: French Blue (#436BAD). oklch(54.6% 0.107 270.6), rgb(89, 108, 175).
Aa
White text reads best on this color (5.01:1).
About this color
#596CAF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.107 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.027 away. White text reads best on it, at 5.01:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 4.18:1 |
| White text | 5.01:1 |
Values
| HEX | #596CAF |
| RGB | rgb(89, 108, 175) |
| HSL | hsl(227, 35%, 52%) |
| OKLCH | oklch(54.6% 0.107 270.6) |
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 #596CAF | 5.01:1 | AA | Lc -80.0 | Fine for body text |
| Black text on #596CAF | 4.18:1 | AA large text | Lc 29.5 | Dividers and decoration only |
| #596CAF text on white | 5.01:1 | AA | Lc 74.6 | Content text, not long reading |
| #596CAF 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
#E6EAF4
oklch(93.7% 0.014 268.5)
-
Step 200
200
#D2D9EB
oklch(88.5% 0.026 268.8)
-
Step 300
300
#B5C0E1
oklch(81% 0.048 270.8)
-
Step 400
400
#8E9FD1
oklch(70.8% 0.076 269.9)
-
Step 500
500
#7386C6
oklch(63.1% 0.099 270.7)
-
Step 600
600 (this color)
#596CAF
oklch(54.6% 0.107 270.6)
-
Step 700
700
#4B5C99
oklch(49% 0.1 270.6)
-
Step 800
800
#3E4C7C
oklch(42.8% 0.082 270.3)
-
Step 900
900
#353F64
oklch(37.6% 0.065 271.5)
-
Step 950
950
#1F253A
oklch(26.9% 0.04 271.3)
#596CAF 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) | #5273B2 | 0.020 |
| Deuteranopia (no green cones) | #4A6CAE | 0.019 |
| Tritanopia (no blue cones) | #367A85 | 0.096 |
| Achromatopsia (no color) | #6F6F6F | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #596CAF
#596CAF
oklch(54.6% 0.107 270.6)
- #886D0F
#886D0F
oklch(54.6% 0.107 90.7)
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 #596CAF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.027
- Flat Blue #3C73A8 ΔE 0.039
- Windows Blue #3778BF ΔE 0.046
- Muted Blue #3B719F ΔE 0.046
- Dull Blue #49759C ΔE 0.048
- Mid Blue #276AB3 ΔE 0.051
- Dusky Blue #475F94 ΔE 0.059
- Stormy Blue #507B9C ΔE 0.059
Use #596CAF 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.