#548BB8
Closest named color: Dusty Blue (#5A86AD). oklch(61.7% 0.09 244.7), rgb(84, 139, 184).
Aa
Black text reads best on this color (5.76:1).
About this color
#548BB8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.090 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.019 away. Black text reads best on it, at 5.76:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.76:1 |
| White text | 3.64:1 |
Values
| HEX | #548BB8 |
| RGB | rgb(84, 139, 184) |
| HSL | hsl(207, 41%, 53%) |
| OKLCH | oklch(61.7% 0.09 244.7) |
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 #548BB8 | 3.64:1 | AA large text | Lc -69.4 | Content text, not long reading |
| Black text on #548BB8 | 5.76:1 | AA | Lc 40.2 | Non-text elements, placeholder text |
| #548BB8 text on white | 3.64:1 | AA large text | Lc 63.9 | Content text, not long reading |
| #548BB8 text on black | 5.76:1 | AA | Lc -37.8 | 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
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDBE9
oklch(88.4% 0.025 246.2)
-
Step 300
300
#AAC4DC
oklch(80.9% 0.044 246.2)
-
Step 400
400
#7BA6CA
oklch(70.7% 0.07 244.3)
-
Step 500
500 (this color)
#548BB8
oklch(61.7% 0.09 244.7)
-
Step 600
600
#3C79A9
oklch(55.7% 0.098 244.7)
-
Step 700
700
#2E6591
oklch(49% 0.092 245.4)
-
Step 800
800
#275375
oklch(42.7% 0.075 244.2)
-
Step 900
900
#25455F
oklch(37.8% 0.059 244.8)
-
Step 950
950
#162837
oklch(26.9% 0.037 244.9)
#548BB8 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) | #788CBA | 0.043 |
| Deuteranopia (no green cones) | #6A81B7 | 0.035 |
| Tritanopia (no blue cones) | #11969A | 0.076 |
| Achromatopsia (no color) | #868686 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #548BB8
#548BB8
oklch(61.7% 0.09 244.7)
- #AB7A48
#AB7A48
oklch(61.8% 0.09 65.4)
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 #548BB8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.019
- Faded Blue #658CBB ΔE 0.020
- Off Blue #5684AE ΔE 0.022
- Cool Blue #4984B8 ΔE 0.024
- Steel Blue #4682B4 ΔE 0.031
- Blue NCS #118AB2 ΔE 0.044
- Silver Lake Blue #778DA9 ΔE 0.046
- Blue Grey #758DA3 ΔE 0.049
Use #548BB8 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.