#5673AA
Closest named color: Flat Blue (#3C73A8). oklch(55.7% 0.093 262.5), rgb(86, 115, 170).
Aa
White text reads best on this color (4.74:1).
About this color
#5673AA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 56%, its chroma 0.093 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Flat Blue (#3C73A8), ΔE 0.028 away. White text reads best on it, at 4.74:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Flat Blue (#3C73A8) |
| Black text | 4.42:1 |
| White text | 4.74:1 |
Values
| HEX | #5673AA |
| RGB | rgb(86, 115, 170) |
| HSL | hsl(219, 33%, 50%) |
| OKLCH | oklch(55.7% 0.093 262.5) |
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 #5673AA | 4.74:1 | AA | Lc -78.3 | Fine for body text |
| Black text on #5673AA | 4.42:1 | AA large text | Lc 31.3 | Non-text elements, placeholder text |
| #5673AA text on white | 4.74:1 | AA | Lc 72.8 | Content text, not long reading |
| #5673AA text on black | 4.42:1 | AA large text | Lc -28.9 | 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
#F3F5F9
oklch(97% 0.006 264.5)
-
Step 100
100
#E6EAF2
oklch(93.6% 0.012 264.5)
-
Step 200
200
#D1DAE9
oklch(88.6% 0.023 260.7)
-
Step 300
300
#B2C1DC
oklch(80.8% 0.042 262.3)
-
Step 400
400
#8AA1CB
oklch(70.7% 0.067 262.3)
-
Step 500
500
#6E89BD
oklch(63% 0.085 263)
-
Step 600
600 (this color)
#5673AA
oklch(55.7% 0.093 262.5)
-
Step 700
700
#466092
oklch(49.1% 0.087 262.7)
-
Step 800
800
#3A4F76
oklch(42.8% 0.07 262.2)
-
Step 900
900
#32415F
oklch(37.6% 0.055 263.6)
-
Step 950
950
#1D2638
oklch(26.9% 0.036 263.7)
#5673AA 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) | #5E77AC | 0.016 |
| Deuteranopia (no green cones) | #556FA9 | 0.011 |
| Tritanopia (no blue cones) | #327F87 | 0.083 |
| Achromatopsia (no color) | #737373 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5673AA
#5673AA
oklch(55.7% 0.093 262.5)
- #8E6E2C
#8E6E2C
oklch(55.7% 0.092 82.7)
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 #5673AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Blue #3C73A8 ΔE 0.028
- Dull Blue #49759C ΔE 0.029
- French Blue #436BAD ΔE 0.035
- Muted Blue #3B719F ΔE 0.036
- Stormy Blue #507B9C ΔE 0.037
- Cerulean #457B9D ΔE 0.039
- Windows Blue #3778BF ΔE 0.041
- Steel Blue #4682B4 ΔE 0.042
Use #5673AA 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.