#5184AA
Closest named color: Off Blue (#5684AE). oklch(59.3% 0.08 242.1), rgb(81, 132, 170).
Aa
Black text reads best on this color (5.23:1).
About this color
#5184AA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.080 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Off Blue (#5684AE), ΔE 0.009 away. Black text reads best on it, at 5.23:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Off Blue (#5684AE) |
| Black text | 5.23:1 |
| White text | 4.01:1 |
Values
| HEX | #5184AA |
| RGB | rgb(81, 132, 170) |
| HSL | hsl(206, 35%, 49%) |
| OKLCH | oklch(59.3% 0.08 242.1) |
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 #5184AA | 4.01:1 | AA large text | Lc -72.8 | Content text, not long reading |
| Black text on #5184AA | 5.23:1 | AA | Lc 36.8 | Non-text elements, placeholder text |
| #5184AA text on white | 4.01:1 | AA large text | Lc 67.3 | Content text, not long reading |
| #5184AA text on black | 5.23:1 | AA | Lc -34.3 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CEDBE5
oklch(88.5% 0.02 240.8)
-
Step 300
300
#ADC4D6
oklch(80.9% 0.036 241.6)
-
Step 400
400
#81A6C2
oklch(70.8% 0.058 241.3)
-
Step 500
500
#618FB3
oklch(63.1% 0.074 242.9)
-
Step 600
600 (this color)
#5184AA
oklch(59.3% 0.08 242.1)
-
Step 700
700
#376687
oklch(49.1% 0.074 241.1)
-
Step 800
800
#2E536E
oklch(42.7% 0.062 241.9)
-
Step 900
900
#2A4559
oklch(37.8% 0.048 241.7)
-
Step 950
950
#192834
oklch(26.9% 0.03 243.3)
#5184AA 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) | #7484AC | 0.042 |
| Deuteranopia (no green cones) | #687BA9 | 0.034 |
| Tritanopia (no blue cones) | #1F8D91 | 0.065 |
| Achromatopsia (no color) | #7F7F7F | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5184AA
#5184AA
oklch(59.3% 0.08 242.1)
- #A1734B
#A1734B
oklch(59.3% 0.08 61.3)
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 #5184AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Off Blue #5684AE ΔE 0.009
- Dusty Blue #5A86AD ΔE 0.013
- Steel Blue #4682B4 ΔE 0.021
- Cool Blue #4984B8 ΔE 0.023
- Stormy Blue #507B9C ΔE 0.030
- Cerulean #457B9D ΔE 0.034
- Blue NCS #118AB2 ΔE 0.039
- Faded Blue #658CBB ΔE 0.041
Use #5184AA 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.