#548AD8
Closest named color: Dark Sky Blue (#448EE4). oklch(63.2% 0.132 257.6), rgb(84, 138, 216).
Aa
Black text reads best on this color (6.00:1).
About this color
#548AD8 is a medium-light, moderately saturated blue. In OKLCH its lightness is 63%, its chroma 0.132 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.022 away. Black text reads best on it, at 6.00:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 6.00:1 |
| White text | 3.49:1 |
Values
| HEX | #548AD8 |
| RGB | rgb(84, 138, 216) |
| HSL | hsl(215, 63%, 59%) |
| OKLCH | oklch(63.2% 0.132 257.6) |
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 #548AD8 | 3.49:1 | AA large text | Lc -67.8 | Content text, not long reading |
| Black text on #548AD8 | 6.00:1 | AA | Lc 41.7 | Non-text elements, placeholder text |
| #548AD8 text on white | 3.49:1 | AA large text | Lc 62.3 | Content text, not long reading |
| #548AD8 text on black | 6.00:1 | AA | Lc -39.4 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF7
oklch(93.7% 0.019 255.5)
-
Step 200
200
#CBDAF1
oklch(88.4% 0.036 258.9)
-
Step 300
300
#A7C3EB
oklch(81% 0.064 257.3)
-
Step 400
400
#77A2E0
oklch(70.6% 0.103 257.5)
-
Step 500
500 (this color)
#548AD8
oklch(63.2% 0.132 257.6)
-
Step 600
600
#3872C5
oklch(55.6% 0.143 257.7)
-
Step 700
700
#2A5FAA
oklch(49% 0.133 257.6)
-
Step 800
800
#244E8A
oklch(42.7% 0.11 257.7)
-
Step 900
900
#22416E
oklch(37.6% 0.086 257.8)
-
Step 950
950
#152741
oklch(27.2% 0.054 257.6)
#548AD8 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) | #6990DB | 0.030 |
| Deuteranopia (no green cones) | #5783D6 | 0.018 |
| Tritanopia (no blue cones) | #009CA7 | 0.111 |
| Achromatopsia (no color) | #898989 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #548AD8
#548AD8
oklch(63.2% 0.132 257.6)
- #B57E01
#B57E01
oklch(63.3% 0.132 78)
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 #548AD8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.022
- Soft Blue #6488EA ΔE 0.034
- Chefchaouen Blue #4895EF ΔE 0.040
- Cornflower Blue #6495ED ΔE 0.045
- Faded Blue #658CBB ΔE 0.049
- Water Blue #0E87CC ΔE 0.049
- Cool Blue #4984B8 ΔE 0.051
- Steel Blue #4682B4 ΔE 0.059
Use #548AD8 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.