#548FB9
Closest named color: Faded Blue (#658CBB). oklch(62.7% 0.089 241.1), rgb(84, 143, 185).
Aa
Black text reads best on this color (6.00:1).
About this color
#548FB9 is a medium-light, moderately saturated blue. In OKLCH its lightness is 63%, its chroma 0.089 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.020 away. Black text reads best on it, at 6.00:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.00:1 |
| White text | 3.49:1 |
Values
| HEX | #548FB9 |
| RGB | rgb(84, 143, 185) |
| HSL | hsl(205, 42%, 53%) |
| OKLCH | oklch(62.7% 0.089 241.1) |
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 #548FB9 | 3.49:1 | AA large text | Lc -67.9 | Content text, not long reading |
| Black text on #548FB9 | 6.00:1 | AA | Lc 41.7 | Non-text elements, placeholder text |
| #548FB9 text on white | 3.49:1 | AA large text | Lc 62.4 | Content text, not long reading |
| #548FB9 text on black | 6.00:1 | AA | Lc -39.3 | 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
#CCDCE8
oklch(88.6% 0.024 240.1)
-
Step 300
300
#A9C5DB
oklch(81% 0.043 241.8)
-
Step 400
400
#79A7C8
oklch(70.8% 0.069 240.2)
-
Step 500
500 (this color)
#548FB9
oklch(62.7% 0.089 241.1)
-
Step 600
600
#387AA6
oklch(55.6% 0.096 240.7)
-
Step 700
700
#2A668F
oklch(49% 0.09 241.8)
-
Step 800
800
#245474
oklch(42.8% 0.074 240.8)
-
Step 900
900
#23455D
oklch(37.6% 0.057 241.3)
-
Step 950
950
#152937
oklch(27.1% 0.037 240.5)
#548FB9 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) | #7C8FBB | 0.046 |
| Deuteranopia (no green cones) | #6F84B8 | 0.040 |
| Tritanopia (no blue cones) | #0B999D | 0.072 |
| Achromatopsia (no color) | #898989 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #548FB9
#548FB9
oklch(62.7% 0.089 241.1)
- #AF7C4F
#AF7C4F
oklch(62.8% 0.088 61.6)
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 #548FB9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.020
- Dusty Blue #5A86AD ΔE 0.027
- Off Blue #5684AE ΔE 0.032
- Cool Blue #4984B8 ΔE 0.035
- Steel Blue #4682B4 ΔE 0.041
- Silver Lake Blue #778DA9 ΔE 0.043
- Blue Grey #758DA3 ΔE 0.046
- Blue NCS #118AB2 ΔE 0.048
Use #548FB9 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.