#558BC2
Closest named color: Faded Blue (#658CBB). oklch(62.3% 0.102 250.2), rgb(85, 139, 194).
Aa
Black text reads best on this color (5.85:1).
About this color
#558BC2 is a medium-light, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.102 and its hue 250°. 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 5.85:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 5.85:1 |
| White text | 3.58:1 |
Values
| HEX | #558BC2 |
| RGB | rgb(85, 139, 194) |
| HSL | hsl(210, 47%, 55%) |
| OKLCH | oklch(62.3% 0.102 250.2) |
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 #558BC2 | 3.58:1 | AA large text | Lc -68.8 | Content text, not long reading |
| Black text on #558BC2 | 5.85:1 | AA | Lc 40.8 | Non-text elements, placeholder text |
| #558BC2 text on white | 3.58:1 | AA large text | Lc 63.3 | Content text, not long reading |
| #558BC2 text on black | 5.85:1 | AA | Lc -38.4 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CCDBEB
oklch(88.5% 0.027 249.9)
-
Step 300
300
#A9C4E0
oklch(80.9% 0.049 249.4)
-
Step 400
400
#7BA5D1
oklch(70.8% 0.079 250.1)
-
Step 500
500 (this color)
#558BC2
oklch(62.3% 0.102 250.2)
-
Step 600
600
#3B77B1
oklch(55.6% 0.11 249.8)
-
Step 700
700
#2D6498
oklch(49.2% 0.102 249.5)
-
Step 800
800
#27517C
oklch(42.6% 0.086 251)
-
Step 900
900
#244463
oklch(37.7% 0.066 249.2)
-
Step 950
950
#16283A
oklch(27.1% 0.041 249.6)
#558BC2 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) | #748DC4 | 0.037 |
| Deuteranopia (no green cones) | #6682C1 | 0.029 |
| Tritanopia (no blue cones) | #00989E | 0.088 |
| Achromatopsia (no color) | #878787 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558BC2
#558BC2
oklch(62.3% 0.102 250.2)
- #AE7B3C
#AE7B3C
oklch(62.2% 0.102 69.7)
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 #558BC2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.020
- Cool Blue #4984B8 ΔE 0.027
- Dusty Blue #5A86AD ΔE 0.032
- Off Blue #5684AE ΔE 0.032
- Steel Blue #4682B4 ΔE 0.036
- Water Blue #0E87CC ΔE 0.048
- Dark Sky Blue #448EE4 ΔE 0.051
- Blue NCS #118AB2 ΔE 0.052
Use #558BC2 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.