#5381BD
Closest named color: Cool Blue (#4984B8). oklch(59.7% 0.105 255.6), rgb(83, 129, 189).
Aa
Black text reads best on this color (5.24:1).
About this color
#5381BD is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.105 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.016 away. Black text reads best on it, at 5.24:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.24:1 |
| White text | 4.00:1 |
Values
| HEX | #5381BD |
| RGB | rgb(83, 129, 189) |
| HSL | hsl(214, 45%, 53%) |
| OKLCH | oklch(59.7% 0.105 255.6) |
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 #5381BD | 4.00:1 | AA large text | Lc -72.7 | Content text, not long reading |
| Black text on #5381BD | 5.24:1 | AA | Lc 36.9 | Non-text elements, placeholder text |
| #5381BD text on white | 4.00:1 | AA large text | Lc 67.2 | Content text, not long reading |
| #5381BD text on black | 5.24:1 | AA | Lc -34.5 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF4
oklch(93.7% 0.015 251.2)
-
Step 200
200
#CDDAEC
oklch(88.4% 0.029 256.5)
-
Step 300
300
#ABC3E2
oklch(80.9% 0.051 254.9)
-
Step 400
400
#7EA3D4
oklch(70.7% 0.083 255.6)
-
Step 500
500 (this color)
#5381BD
oklch(59.7% 0.105 255.6)
-
Step 600
600
#4375B5
oklch(55.7% 0.114 255.4)
-
Step 700
700
#34629C
oklch(49.2% 0.106 255.2)
-
Step 800
800
#2C507E
oklch(42.7% 0.087 255.4)
-
Step 900
900
#284365
oklch(37.8% 0.067 254.9)
-
Step 950
950
#18273B
oklch(27% 0.043 255.9)
#5381BD 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) | #6985C0 | 0.029 |
| Deuteranopia (no green cones) | #5B7ABC | 0.020 |
| Tritanopia (no blue cones) | #038F96 | 0.095 |
| Achromatopsia (no color) | #7F7F7F | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5381BD
#5381BD
oklch(59.7% 0.105 255.6)
- #A3752C
#A3752C
oklch(59.5% 0.105 75.4)
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 #5381BD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.016
- Steel Blue #4682B4 ΔE 0.020
- Off Blue #5684AE ΔE 0.027
- Dusty Blue #5A86AD ΔE 0.033
- Windows Blue #3778BF ΔE 0.040
- Faded Blue #658CBB ΔE 0.040
- Water Blue #0E87CC ΔE 0.045
- Stormy Blue #507B9C ΔE 0.051
Use #5381BD 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.