#5B68BB
Closest named color: French Blue (#436BAD). oklch(54.7% 0.129 274.6), rgb(91, 104, 187).
Aa
White text reads best on this color (5.06:1).
About this color
#5B68BB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.129 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.038 away. White text reads best on it, at 5.06:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 4.14:1 |
| White text | 5.06:1 |
Values
| HEX | #5B68BB |
| RGB | rgb(91, 104, 187) |
| HSL | hsl(232, 41%, 55%) |
| OKLCH | oklch(54.7% 0.129 274.6) |
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 #5B68BB | 5.06:1 | AA | Lc -80.2 | Fine for body text |
| Black text on #5B68BB | 4.14:1 | AA large text | Lc 29.2 | Dividers and decoration only |
| #5B68BB text on white | 5.06:1 | AA | Lc 74.8 | Content text, not long reading |
| #5B68BB text on black | 4.14:1 | AA large text | Lc -26.9 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F5
oklch(93.5% 0.016 274.8)
-
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
#7483D1
oklch(63.2% 0.119 274.3)
-
Step 600
600 (this color)
#5B68BB
oklch(54.7% 0.129 274.6)
-
Step 700
700
#4D59A4
oklch(49.1% 0.12 274.3)
-
Step 800
800
#3F4985
oklch(42.7% 0.1 274.3)
-
Step 900
900
#363D6A
oklch(37.6% 0.077 275.4)
-
Step 950
950
#1F243E
oklch(26.9% 0.049 274.4)
#5B68BB 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) | #4573BE | 0.036 |
| Deuteranopia (no green cones) | #3B6BB9 | 0.037 |
| Tritanopia (no blue cones) | #327A88 | 0.115 |
| Achromatopsia (no color) | #6E6E6E | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B68BB
#5B68BB
oklch(54.7% 0.129 274.6)
- #866F00
#866F00
oklch(54.8% 0.112 94.5)
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 #5B68BB, closest first.
No curated palette has a color within ΔE 0.04 of #5B68BB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.038
- Iris #6258C4 ΔE 0.045
- Dark Periwinkle #665FD1 ΔE 0.045
- Slate Blue #6A5ACD ΔE 0.051
- Windows Blue #3778BF ΔE 0.052
- Light Indigo #6D5ACF ΔE 0.054
- Mid Blue #276AB3 ΔE 0.055
- Flat Blue #3C73A8 ΔE 0.057
Use #5B68BB 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.