#5683B0
Closest named color: Off Blue (#5684AE). oklch(59.6% 0.085 249.4), rgb(86, 131, 176).
Aa
Black text reads best on this color (5.26:1).
About this color
#5683B0 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.085 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Off Blue (#5684AE), ΔE 0.005 away. Black text reads best on it, at 5.26:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Off Blue (#5684AE) |
| Black text | 5.26:1 |
| White text | 3.98:1 |
Values
| HEX | #5683B0 |
| RGB | rgb(86, 131, 176) |
| HSL | hsl(210, 36%, 51%) |
| OKLCH | oklch(59.6% 0.085 249.4) |
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 #5683B0 | 3.98:1 | AA large text | Lc -72.6 | Content text, not long reading |
| Black text on #5683B0 | 5.26:1 | AA | Lc 37.0 | Non-text elements, placeholder text |
| #5683B0 text on white | 3.98:1 | AA large text | Lc 67.1 | Content text, not long reading |
| #5683B0 text on black | 5.26:1 | AA | Lc -34.6 | 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 500.
-
Step 50
50
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CEDBE8
oklch(88.6% 0.023 248.1)
-
Step 300
300
#ADC3DB
oklch(80.8% 0.042 250.6)
-
Step 400
400
#81A4C9
oklch(70.6% 0.067 250.2)
-
Step 500
500 (this color)
#5683B0
oklch(59.6% 0.085 249.4)
-
Step 600
600
#4677A7
oklch(55.6% 0.092 249.3)
-
Step 700
700
#37648F
oklch(49.1% 0.085 249)
-
Step 800
800
#2E5274
oklch(42.7% 0.07 248.5)
-
Step 900
900
#2A445E
oklch(37.8% 0.055 249.5)
-
Step 950
950
#192837
oklch(27.1% 0.035 249.2)
#5683B0 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) | #7184B2 | 0.033 |
| Deuteranopia (no green cones) | #657BAF | 0.026 |
| Tritanopia (no blue cones) | #298D92 | 0.073 |
| Achromatopsia (no color) | #7F7F7F | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5683B0
#5683B0
oklch(59.6% 0.085 249.4)
- #A07644
#A07644
oklch(59.7% 0.085 69.8)
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 #5683B0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Off Blue #5684AE ΔE 0.005
- Dusty Blue #5A86AD ΔE 0.012
- Cool Blue #4984B8 ΔE 0.016
- Steel Blue #4682B4 ΔE 0.017
- Faded Blue #658CBB ΔE 0.035
- Stormy Blue #507B9C ΔE 0.036
- Cerulean #457B9D ΔE 0.040
- Blue NCS #118AB2 ΔE 0.045
Use #5683B0 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.