#5188AF
Closest named color: Dusty Blue (#5A86AD). oklch(60.5% 0.083 240.9), rgb(81, 136, 175).
Aa
Black text reads best on this color (5.49:1).
About this color
#5188AF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.083 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.010 away. Black text reads best on it, at 5.49:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.49:1 |
| White text | 3.82:1 |
Values
| HEX | #5188AF |
| RGB | rgb(81, 136, 175) |
| HSL | hsl(205, 37%, 50%) |
| OKLCH | oklch(60.5% 0.083 240.9) |
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 #5188AF | 3.82:1 | AA large text | Lc -71.1 | Content text, not long reading |
| Black text on #5188AF | 5.49:1 | AA | Lc 38.5 | Non-text elements, placeholder text |
| #5188AF text on white | 3.82:1 | AA large text | Lc 65.6 | Content text, not long reading |
| #5188AF text on black | 5.49:1 | AA | Lc -36.0 | 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
#CCDBE7
oklch(88.4% 0.023 241.9)
-
Step 300
300
#AAC5D9
oklch(81% 0.041 240.1)
-
Step 400
400
#7CA6C6
oklch(70.6% 0.065 241.7)
-
Step 500
500 (this color)
#5188AF
oklch(60.5% 0.083 240.9)
-
Step 600
600
#3D7AA3
oklch(55.7% 0.09 240.4)
-
Step 700
700
#2E668C
oklch(49% 0.085 241.2)
-
Step 800
800
#285472
oklch(42.9% 0.07 240.8)
-
Step 900
900
#25455C
oklch(37.7% 0.055 241.5)
-
Step 950
950
#162936
oklch(27.1% 0.035 239.7)
#5188AF 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) | #7788B1 | 0.045 |
| Deuteranopia (no green cones) | #6A7EAE | 0.037 |
| Tritanopia (no blue cones) | #169295 | 0.069 |
| Achromatopsia (no color) | #828282 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5188AF
#5188AF
oklch(60.5% 0.083 240.9)
- #A6764C
#A6764C
oklch(60.5% 0.083 61.4)
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 #5188AF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.010
- Off Blue #5684AE ΔE 0.012
- Cool Blue #4984B8 ΔE 0.022
- Steel Blue #4682B4 ΔE 0.024
- Faded Blue #658CBB ΔE 0.031
- Blue NCS #118AB2 ΔE 0.038
- Stormy Blue #507B9C ΔE 0.042
- Cerulean #457B9D ΔE 0.045
Use #5188AF 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.