#5671C8
Closest named color: Windows Blue (#3778BF). oklch(57% 0.138 268.8), rgb(86, 113, 200).
Aa
Black text reads best on this color (4.59:1).
About this color
#5671C8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 57%, its chroma 0.138 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.038 away. Black text reads best on it, at 4.59:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.59:1 |
| White text | 4.57:1 |
Values
| HEX | #5671C8 |
| RGB | rgb(86, 113, 200) |
| HSL | hsl(226, 51%, 56%) |
| OKLCH | oklch(57% 0.138 268.8) |
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 #5671C8 | 4.57:1 | AA | Lc -77.0 | Fine for body text |
| Black text on #5671C8 | 4.59:1 | AA | Lc 32.5 | Non-text elements, placeholder text |
| #5671C8 text on white | 4.57:1 | AA | Lc 71.6 | Content text, not long reading |
| #5671C8 text on black | 4.59:1 | AA | Lc -30.1 | Non-text elements, placeholder text |
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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF6
oklch(93.7% 0.017 267.8)
-
Step 200
200
#D0D9F1
oklch(88.6% 0.034 269.3)
-
Step 300
300
#B0C0EA
oklch(81% 0.062 268.6)
-
Step 400
400
#879EDF
oklch(70.7% 0.099 268.9)
-
Step 500
500
#6A85D6
oklch(63.2% 0.126 268.7)
-
Step 600
600 (this color)
#5671C8
oklch(57% 0.138 268.8)
-
Step 700
700
#435AA9
oklch(49% 0.129 269)
-
Step 800
800
#374A89
oklch(42.7% 0.107 268.9)
-
Step 900
900
#2F3E6D
oklch(37.5% 0.083 268.8)
-
Step 950
950
#1C2540
oklch(27.1% 0.052 268.8)
#5671C8 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) | #4B7BCB | 0.027 |
| Deuteranopia (no green cones) | #3C71C6 | 0.028 |
| Tritanopia (no blue cones) | #038493 | 0.123 |
| Achromatopsia (no color) | #767676 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5671C8
#5671C8
oklch(57% 0.138 268.8)
- #937300
#937300
oklch(57.1% 0.117 89.2)
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 #5671C8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.038
- French Blue #436BAD ΔE 0.050
- Dark Periwinkle #665FD1 ΔE 0.051
- Royal Blue #4169E1 ΔE 0.052
- Flat Blue #3C73A8 ΔE 0.060
- Mid Blue #276AB3 ΔE 0.062
- Slate Blue #6A5ACD ΔE 0.062
- Iris #6258C4 ΔE 0.063
Use #5671C8 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.