#548CEF
Closest named color: Soft Blue (#6488EA). oklch(64.9% 0.16 260.9), rgb(84, 140, 239).
Aa
Black text reads best on this color (6.37:1).
About this color
#548CEF is a medium-light, vivid blue. In OKLCH its lightness is 65%, its chroma 0.160 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.018 away. Black text reads best on it, at 6.37:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.160) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 6.37:1 |
| White text | 3.29:1 |
Values
| HEX | #548CEF |
| RGB | rgb(84, 140, 239) |
| HSL | hsl(218, 83%, 63%) |
| OKLCH | oklch(64.9% 0.16 260.9) |
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 #548CEF | 3.29:1 | AA large text | Lc -65.5 | Content text, not long reading |
| Black text on #548CEF | 6.37:1 | AA | Lc 44.0 | Non-text elements, placeholder text |
| #548CEF text on white | 3.29:1 | AA large text | Lc 60.0 | Content text, not long reading |
| #548CEF text on black | 6.37:1 | AA | Lc -41.7 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAF9
oklch(93.5% 0.023 260.7)
-
Step 200
200
#C9DAF7
oklch(88.5% 0.044 261.2)
-
Step 300
300
#A4C2F4
oklch(81% 0.078 260.5)
-
Step 400
400
#73A0EE
oklch(70.6% 0.125 260.9)
-
Step 500
500 (this color)
#548CEF
oklch(64.9% 0.16 260.9)
-
Step 600
600
#326ED7
oklch(55.7% 0.173 260.7)
-
Step 700
700
#255BBA
oklch(49.1% 0.161 260.8)
-
Step 800
800
#204B97
oklch(42.8% 0.134 260.8)
-
Step 900
900
#1F3F78
oklch(37.6% 0.105 261)
-
Step 950
950
#132546
oklch(26.9% 0.066 261.5)
#548CEF 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) | #5E95F3 | 0.027 |
| Deuteranopia (no green cones) | #4687ED | 0.020 |
| Tritanopia (no blue cones) | #00A3B2 | 0.132 |
| Achromatopsia (no color) | #8E8E8E | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #548CEF
#548CEF
oklch(64.9% 0.16 260.9)
- #B88500
#B88500
oklch(65% 0.134 81.4)
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 #548CEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.018
- Dark Sky Blue #448EE4 ΔE 0.023
- Chefchaouen Blue #4895EF ΔE 0.024
- Cornflower Blue #6495ED ΔE 0.031
- Dodger Blue #1E90FF ΔE 0.038
- Cornflower #6A79F7 ΔE 0.053
- Lavender Blue #8B88F8 ΔE 0.067
- Clear Blue #247AFD ΔE 0.068
Use #548CEF 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.