#5671B1
Closest named color: French Blue (#436BAD). oklch(55.6% 0.105 265.8), rgb(86, 113, 177).
Aa
White text reads best on this color (4.78:1).
About this color
#5671B1 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 56%, its chroma 0.105 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.030 away. White text reads best on it, at 4.78:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 4.39:1 |
| White text | 4.78:1 |
Values
| HEX | #5671B1 |
| RGB | rgb(86, 113, 177) |
| HSL | hsl(222, 37%, 52%) |
| OKLCH | oklch(55.6% 0.105 265.8) |
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 #5671B1 | 4.78:1 | AA | Lc -78.5 | Fine for body text |
| Black text on #5671B1 | 4.39:1 | AA large text | Lc 31.0 | Non-text elements, placeholder text |
| #5671B1 text on white | 4.78:1 | AA | Lc 73.1 | Content text, not long reading |
| #5671B1 text on black | 4.39:1 | AA large text | Lc -28.6 | 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
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D1D9EB
oklch(88.5% 0.026 266.6)
-
Step 300
300
#B2C1E0
oklch(81% 0.047 264.9)
-
Step 400
400
#8AA0D1
oklch(70.7% 0.076 265.7)
-
Step 500
500
#6E88C4
oklch(63.1% 0.096 265.8)
-
Step 600
600 (this color)
#5671B1
oklch(55.6% 0.105 265.8)
-
Step 700
700
#465E98
oklch(49% 0.098 265.9)
-
Step 800
800
#3A4D7B
oklch(42.7% 0.08 266.1)
-
Step 900
900
#324063
oklch(37.6% 0.063 266.8)
-
Step 950
950
#1D263A
oklch(27% 0.04 265.3)
#5671B1 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) | #5877B4 | 0.017 |
| Deuteranopia (no green cones) | #4E6FB0 | 0.012 |
| Tritanopia (no blue cones) | #2C7F89 | 0.094 |
| Achromatopsia (no color) | #727272 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5671B1
#5671B1
oklch(55.6% 0.105 265.8)
- #8F6E19
#8F6E19
oklch(55.6% 0.105 85.6)
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 #5671B1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.030
- Flat Blue #3C73A8 ΔE 0.033
- Windows Blue #3778BF ΔE 0.036
- Dull Blue #49759C ΔE 0.041
- Muted Blue #3B719F ΔE 0.043
- Steel Blue #4682B4 ΔE 0.048
- Stormy Blue #507B9C ΔE 0.050
- Cerulean #457B9D ΔE 0.051
Use #5671B1 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.