#5384A3
Closest named color: Off Blue (#5684AE). oklch(59.1% 0.071 237.5), rgb(83, 132, 163).
Aa
Black text reads best on this color (5.19:1).
About this color
#5384A3 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.071 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Off Blue (#5684AE), ΔE 0.018 away. Black text reads best on it, at 5.19:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Off Blue (#5684AE) |
| Black text | 5.19:1 |
| White text | 4.04:1 |
Values
| HEX | #5384A3 |
| RGB | rgb(83, 132, 163) |
| HSL | hsl(203, 33%, 48%) |
| OKLCH | oklch(59.1% 0.071 237.5) |
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 #5384A3 | 4.04:1 | AA large text | Lc -73.1 | Content text, not long reading |
| Black text on #5384A3 | 5.19:1 | AA | Lc 36.5 | Non-text elements, placeholder text |
| #5384A3 text on white | 4.04:1 | AA large text | Lc 67.6 | Content text, not long reading |
| #5384A3 text on black | 5.19:1 | AA | Lc -34.1 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBEF
oklch(93.6% 0.009 232.4)
-
Step 200
200
#CFDBE4
oklch(88.5% 0.018 240)
-
Step 300
300
#AEC4D3
oklch(80.8% 0.032 237.7)
-
Step 400
400
#83A6BD
oklch(70.7% 0.051 237.2)
-
Step 500
500
#6390AD
oklch(63.2% 0.066 237.5)
-
Step 600
600 (this color)
#5384A3
oklch(59.1% 0.071 237.5)
-
Step 700
700
#3A6682
oklch(49.1% 0.066 238.1)
-
Step 800
800
#30536A
oklch(42.6% 0.056 238.8)
-
Step 900
900
#2B4556
oklch(37.7% 0.043 238.1)
-
Step 950
950
#1A2932
oklch(27.2% 0.026 235.4)
#5384A3 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) | #7683A5 | 0.043 |
| Deuteranopia (no green cones) | #6B7BA2 | 0.036 |
| Tritanopia (no blue cones) | #2C8C8E | 0.057 |
| Achromatopsia (no color) | #7E7E7E | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5384A3
#5384A3
oklch(59.1% 0.071 237.5)
- #9E7353
#9E7353
oklch(59.1% 0.071 57.5)
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 #5384A3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Off Blue #5684AE ΔE 0.018
- Dusty Blue #5A86AD ΔE 0.018
- Stormy Blue #507B9C ΔE 0.027
- Steel Blue #4682B4 ΔE 0.031
- Cerulean #457B9D ΔE 0.032
- Cool Blue #4984B8 ΔE 0.033
- Grey Blue #647D8E ΔE 0.035
- Slate Gray #708090 ΔE 0.041
Use #5384A3 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.