#578FC0
Closest named color: Faded Blue (#658CBB). oklch(63.2% 0.095 246.4), rgb(87, 143, 192).
Aa
Black text reads best on this color (6.09:1).
About this color
#578FC0 is a medium-light, moderately saturated blue. In OKLCH its lightness is 63%, its chroma 0.095 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.016 away. Black text reads best on it, at 6.09:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.09:1 |
| White text | 3.44:1 |
Values
| HEX | #578FC0 |
| RGB | rgb(87, 143, 192) |
| HSL | hsl(208, 45%, 55%) |
| OKLCH | oklch(63.2% 0.095 246.4) |
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 #578FC0 | 3.44:1 | AA large text | Lc -67.3 | Content text, not long reading |
| Black text on #578FC0 | 6.09:1 | AA | Lc 42.2 | Non-text elements, placeholder text |
| #578FC0 text on white | 3.44:1 | AA large text | Lc 61.8 | Content text, not long reading |
| #578FC0 text on black | 6.09:1 | AA | Lc -39.9 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CCDBEA
oklch(88.5% 0.026 248.1)
-
Step 300
300
#A9C4DD
oklch(80.8% 0.046 246.3)
-
Step 400
400
#7AA6CD
oklch(70.8% 0.075 245.9)
-
Step 500
500 (this color)
#578FC0
oklch(63.2% 0.095 246.4)
-
Step 600
600
#3A78AC
oklch(55.5% 0.103 246.4)
-
Step 700
700
#2C6594
oklch(49.1% 0.096 246.4)
-
Step 800
800
#265278
oklch(42.6% 0.08 247.1)
-
Step 900
900
#244461
oklch(37.6% 0.063 247.6)
-
Step 950
950
#162839
oklch(27% 0.04 248.2)
#578FC0 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) | #7A90C2 | 0.041 |
| Deuteranopia (no green cones) | #6C85BF | 0.034 |
| Tritanopia (no blue cones) | #0E9BA0 | 0.081 |
| Achromatopsia (no color) | #8A8A8A | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #578FC0
#578FC0
oklch(63.2% 0.095 246.4)
- #B17E47
#B17E47
oklch(63.3% 0.096 66.7)
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 #578FC0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.016
- Dusty Blue #5A86AD ΔE 0.033
- Cool Blue #4984B8 ΔE 0.036
- Off Blue #5684AE ΔE 0.037
- Steel Blue #4682B4 ΔE 0.044
- Silver Lake Blue #778DA9 ΔE 0.047
- Blue Grey #758DA3 ΔE 0.052
- Blue NCS #118AB2 ΔE 0.054
Use #578FC0 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.