#5B68AB
Closest named color: French Blue (#436BAD). oklch(53.7% 0.106 274), rgb(91, 104, 171).
Aa
White text reads best on this color (5.23:1).
About this color
#5B68AB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.106 and its hue 274°. 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 5.23:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 4.01:1 |
| White text | 5.23:1 |
Values
| HEX | #5B68AB |
| RGB | rgb(91, 104, 171) |
| HSL | hsl(230, 32%, 51%) |
| OKLCH | oklch(53.7% 0.106 274) |
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 #5B68AB | 5.23:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #5B68AB | 4.01:1 | AA large text | Lc 28.2 | Dividers and decoration only |
| #5B68AB text on white | 5.23:1 | AA | Lc 75.9 | Fine for body text |
| #5B68AB text on black | 4.01:1 | AA large text | Lc -25.9 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D3D8EB
oklch(88.4% 0.027 274.1)
-
Step 300
300
#B7BFE0
oklch(80.9% 0.047 274.6)
-
Step 400
400
#919ED1
oklch(70.8% 0.076 273.2)
-
Step 500
500
#7785C5
oklch(63.2% 0.098 273.9)
-
Step 600
600 (this color)
#5B68AB
oklch(53.7% 0.106 274)
-
Step 700
700
#505B98
oklch(49% 0.098 274.5)
-
Step 800
800
#414B7B
oklch(42.7% 0.081 273.6)
-
Step 900
900
#373F63
oklch(37.7% 0.063 273.5)
-
Step 950
950
#20253A
oklch(27% 0.04 273.2)
#5B68AB 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) | #4F70AE | 0.024 |
| Deuteranopia (no green cones) | #4869A9 | 0.024 |
| Tritanopia (no blue cones) | #3E7681 | 0.095 |
| Achromatopsia (no color) | #6C6C6C | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B68AB
#5B68AB
oklch(53.7% 0.106 274)
- #826C0D
#826C0D
oklch(53.7% 0.106 94.2)
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 #5B68AB, closest first.
No curated palette has a color within ΔE 0.04 of #5B68AB.
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 0.045
- Muted Blue #3B719F ΔE 0.049
- Dusky Blue #475F94 ΔE 0.051
- Dull Blue #49759C ΔE 0.052
- Mid Blue #276AB3 ΔE 0.053
- Windows Blue #3778BF ΔE 0.056
- Iris #6258C4 ΔE 0.062
Use #5B68AB 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.