#578DF4
Closest named color: Soft Blue (#6488EA). oklch(65.6% 0.164 262), rgb(87, 141, 244).
Aa
Black text reads best on this color (6.52:1).
About this color
#578DF4 is a medium-light, vivid blue. In OKLCH its lightness is 66%, its chroma 0.164 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.021 away. Black text reads best on it, at 6.52:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.164) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 6.52:1 |
| White text | 3.22:1 |
Values
| HEX | #578DF4 |
| RGB | rgb(87, 141, 244) |
| HSL | hsl(219, 88%, 65%) |
| OKLCH | oklch(65.6% 0.164 262) |
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 #578DF4 | 3.22:1 | AA large text | Lc -64.6 | Content text, not long reading |
| Black text on #578DF4 | 6.52:1 | AA | Lc 44.9 | Non-text elements, placeholder text |
| #578DF4 text on white | 3.22:1 | AA large text | Lc 59.2 | Large or bold text, headings |
| #578DF4 text on black | 6.52:1 | AA | Lc -42.6 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E1EAFA
oklch(93.5% 0.024 262.1)
-
Step 200
200
#C9DAF7
oklch(88.5% 0.044 261.2)
-
Step 300
300
#A4C1F5
oklch(80.8% 0.081 261.9)
-
Step 400
400
#74A0F1
oklch(70.8% 0.129 261.9)
-
Step 500
500 (this color)
#578DF4
oklch(65.6% 0.164 262)
-
Step 600
600
#346CDA
oklch(55.6% 0.179 262.1)
-
Step 700
700
#275ABD
oklch(49.2% 0.166 261.9)
-
Step 800
800
#224A99
oklch(42.8% 0.137 262.1)
-
Step 900
900
#203F7A
oklch(37.8% 0.107 261.8)
-
Step 950
950
#132547
oklch(26.9% 0.068 261.9)
#578DF4 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) | #5D97F8 | 0.028 |
| Deuteranopia (no green cones) | #4489F2 | 0.022 |
| Tritanopia (no blue cones) | #00A5B5 | 0.136 |
| Achromatopsia (no color) | #8F8F8F | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #578DF4
#578DF4
oklch(65.6% 0.164 262)
- #BA8700
#BA8700
oklch(65.6% 0.135 81.8)
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 #578DF4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.021
- Chefchaouen Blue #4895EF ΔE 0.025
- Cornflower Blue #6495ED ΔE 0.030
- Dark Sky Blue #448EE4 ΔE 0.031
- Dodger Blue #1E90FF ΔE 0.038
- Cornflower #6A79F7 ΔE 0.052
- Lavender Blue #8B88F8 ΔE 0.063
- Perrywinkle #8F8CE7 ΔE 0.069
Use #578DF4 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.