#558AA7
Closest named color: Dusty Blue (#5A86AD). oklch(60.8% 0.072 233.6), rgb(85, 138, 167).
Aa
Black text reads best on this color (5.57:1).
About this color
#558AA7 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 61%, its chroma 0.072 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.018 away. Black text reads best on it, at 5.57:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.57:1 |
| White text | 3.76:1 |
Values
| HEX | #558AA7 |
| RGB | rgb(85, 138, 167) |
| HSL | hsl(201, 33%, 49%) |
| OKLCH | oklch(60.8% 0.072 233.6) |
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 #558AA7 | 3.76:1 | AA large text | Lc -70.6 | Content text, not long reading |
| Black text on #558AA7 | 5.57:1 | AA | Lc 39.0 | Non-text elements, placeholder text |
| #558AA7 text on white | 3.76:1 | AA large text | Lc 65.1 | Content text, not long reading |
| #558AA7 text on black | 5.57:1 | AA | Lc -36.6 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CDDCE4
oklch(88.6% 0.02 230.7)
-
Step 300
300
#ABC5D4
oklch(80.9% 0.035 233.2)
-
Step 400
400
#7EA7BE
oklch(70.7% 0.056 233.1)
-
Step 500
500 (this color)
#558AA7
oklch(60.8% 0.072 233.6)
-
Step 600
600
#407B9A
oklch(55.6% 0.078 233.5)
-
Step 700
700
#326783
oklch(49% 0.072 234)
-
Step 800
800
#2A546B
oklch(42.6% 0.061 234.6)
-
Step 900
900
#274657
oklch(37.8% 0.047 233.9)
-
Step 950
950
#172933
oklch(27% 0.03 233.8)
#558AA7 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) | #7C89A8 | 0.047 |
| Deuteranopia (no green cones) | #7180A7 | 0.041 |
| Tritanopia (no blue cones) | #2C9293 | 0.055 |
| Achromatopsia (no color) | #848484 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558AA7
#558AA7
oklch(60.8% 0.072 233.6)
- #A57759
#A57759
oklch(60.8% 0.072 54)
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 #558AA7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.018
- Off Blue #5684AE ΔE 0.023
- Faded Blue #658CBB ΔE 0.037
- Cool Blue #4984B8 ΔE 0.037
- Steel Blue #4682B4 ΔE 0.038
- Blue Grey #758DA3 ΔE 0.040
- Steel #738595 ΔE 0.041
- Silver Lake Blue #778DA9 ΔE 0.042
Use #558AA7 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.