#3571FF
Closest named color: Clear Blue (#247AFD). oklch(59.4% 0.221 263.7), rgb(53, 113, 255).
Aa
Black text reads best on this color (4.95:1).
About this color
#3571FF is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.221 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.022 away. Black text reads best on it, at 4.95:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.221) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 4.95:1 |
| White text | 4.23:1 |
Values
| HEX | #3571FF |
| RGB | rgb(53, 113, 255) |
| HSL | hsl(222, 100%, 60%) |
| OKLCH | oklch(59.4% 0.221 263.7) |
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 #3571FF | 4.23:1 | AA large text | Lc -74.1 | Content text, not long reading |
| Black text on #3571FF | 4.95:1 | AA | Lc 35.5 | Non-text elements, placeholder text |
| #3571FF text on white | 4.23:1 | AA large text | Lc 68.6 | Content text, not long reading |
| #3571FF text on black | 4.95:1 | AA | Lc -33.1 | 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
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#DFEAFF
oklch(93.5% 0.031 263.5)
-
Step 200
200
#C6DAFF
oklch(88.5% 0.056 262.8)
-
Step 300
300
#A1C0FF
oklch(80.8% 0.096 264.1)
-
Step 400
400
#6F9DFF
oklch(70.7% 0.152 263.9)
-
Step 500
500 (this color)
#3571FF
oklch(59.4% 0.221 263.7)
-
Step 600
600
#2261FC
oklch(55.6% 0.239 263.6)
-
Step 700
700
#174EDC
oklch(49.1% 0.223 263.8)
-
Step 800
800
#1541B2
oklch(42.6% 0.186 263.8)
-
Step 900
900
#17398C
oklch(37.6% 0.144 263.9)
-
Step 950
950
#0E2352
oklch(27.1% 0.09 263.4)
#3571FF 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) | #0085FF | 0.048 |
| Deuteranopia (no green cones) | #0072FC | 0.022 |
| Tritanopia (no blue cones) | #0095AD | 0.172 |
| Achromatopsia (no color) | #7B7B7B | 0.221 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3571FF
#3571FF
oklch(59.4% 0.221 263.7)
- #A17700
#A17700
oklch(59.5% 0.122 83.8)
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 #3571FF, closest first.
No curated palette has a color within ΔE 0.04 of #3571FF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.022
- Cerulean Blue #056EEE ΔE 0.036
- Bright Blue #0165FC ΔE 0.041
- Neon Blue #4361EE ΔE 0.043
- Royal Blue #4169E1 ΔE 0.048
- Azul #1D5DEC ΔE 0.060
- Cornflower #6A79F7 ΔE 0.062
- Dodger Blue #1E90FF ΔE 0.076
Use #3571FF 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.