#5185AB
Closest named color: Off Blue (#5684AE). oklch(59.6% 0.081 241.6), rgb(81, 133, 171).
Aa
Black text reads best on this color (5.29:1).
About this color
#5185AB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.081 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Off Blue (#5684AE), ΔE 0.008 away. Black text reads best on it, at 5.29:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Off Blue (#5684AE) |
| Black text | 5.29:1 |
| White text | 3.96:1 |
Values
| HEX | #5185AB |
| RGB | rgb(81, 133, 171) |
| HSL | hsl(205, 36%, 49%) |
| OKLCH | oklch(59.6% 0.081 241.6) |
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 #5185AB | 3.96:1 | AA large text | Lc -72.4 | Content text, not long reading |
| Black text on #5185AB | 5.29:1 | AA | Lc 37.2 | Non-text elements, placeholder text |
| #5185AB text on white | 3.96:1 | AA large text | Lc 66.9 | Content text, not long reading |
| #5185AB text on black | 5.29:1 | AA | Lc -34.8 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CDDBE7
oklch(88.4% 0.022 243.8)
-
Step 300
300
#ABC4D8
oklch(80.8% 0.039 242.2)
-
Step 400
400
#7EA6C5
oklch(70.7% 0.063 242)
-
Step 500
500 (this color)
#5185AB
oklch(59.6% 0.081 241.6)
-
Step 600
600
#4079A2
oklch(55.5% 0.088 241.9)
-
Step 700
700
#31668B
oklch(49.1% 0.082 241.6)
-
Step 800
800
#2A5371
oklch(42.6% 0.068 242.4)
-
Step 900
900
#27455B
oklch(37.7% 0.052 241.8)
-
Step 950
950
#172835
oklch(26.8% 0.033 242.4)
#5185AB 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) | #7485AD | 0.042 |
| Deuteranopia (no green cones) | #687CAA | 0.034 |
| Tritanopia (no blue cones) | #1D8E92 | 0.065 |
| Achromatopsia (no color) | #808080 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5185AB
#5185AB
oklch(59.6% 0.081 241.6)
- #A2744B
#A2744B
oklch(59.6% 0.081 62)
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 #5185AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Off Blue #5684AE ΔE 0.008
- Dusty Blue #5A86AD ΔE 0.011
- Steel Blue #4682B4 ΔE 0.021
- Cool Blue #4984B8 ΔE 0.022
- Stormy Blue #507B9C ΔE 0.033
- Cerulean #457B9D ΔE 0.036
- Faded Blue #658CBB ΔE 0.039
- Blue NCS #118AB2 ΔE 0.039
Use #5185AB 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.