#558ACA
Closest named color: Faded Blue (#658CBB). oklch(62.5% 0.113 254), rgb(85, 138, 202).
Aa
Black text reads best on this color (5.87:1).
About this color
#558ACA is a medium-light, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.113 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.030 away. Black text reads best on it, at 5.87:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.113) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 5.87:1 |
| White text | 3.57:1 |
Values
| HEX | #558ACA |
| RGB | rgb(85, 138, 202) |
| HSL | hsl(213, 52%, 56%) |
| OKLCH | oklch(62.5% 0.113 254) |
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 #558ACA | 3.57:1 | AA large text | Lc -68.7 | Content text, not long reading |
| Black text on #558ACA | 5.87:1 | AA | Lc 40.9 | Non-text elements, placeholder text |
| #558ACA text on white | 3.57:1 | AA large text | Lc 63.2 | Content text, not long reading |
| #558ACA text on black | 5.87:1 | AA | Lc -38.5 | 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
#E3EBF5
oklch(93.7% 0.016 253.9)
-
Step 200
200
#CCDBEE
oklch(88.6% 0.031 254.3)
-
Step 300
300
#A9C3E4
oklch(80.9% 0.055 254.5)
-
Step 400
400
#7AA4D7
oklch(70.8% 0.088 253.7)
-
Step 500
500 (this color)
#558ACA
oklch(62.5% 0.113 254)
-
Step 600
600
#3B75B9
oklch(55.6% 0.122 253.9)
-
Step 700
700
#2D629F
oklch(49.1% 0.113 253.8)
-
Step 800
800
#265081
oklch(42.6% 0.094 253.9)
-
Step 900
900
#244368
oklch(37.8% 0.074 253.9)
-
Step 950
950
#16273D
oklch(27% 0.047 255.4)
#558ACA 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) | #6F8ECD | 0.033 |
| Deuteranopia (no green cones) | #6082C9 | 0.023 |
| Tritanopia (no blue cones) | #0099A1 | 0.097 |
| Achromatopsia (no color) | #878787 | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558ACA
#558ACA
oklch(62.5% 0.113 254)
- #B07C2D
#B07C2D
oklch(62.5% 0.113 73.8)
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 #558ACA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.030
- Cool Blue #4984B8 ΔE 0.033
- Dark Sky Blue #448EE4 ΔE 0.040
- Steel Blue #4682B4 ΔE 0.042
- Off Blue #5684AE ΔE 0.043
- Dusty Blue #5A86AD ΔE 0.043
- Water Blue #0E87CC ΔE 0.045
- Soft Blue #6488EA ΔE 0.054
Use #558ACA 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.