#4570FF
Closest named color: Clear Blue (#247AFD). oklch(59.8% 0.218 266.8), rgb(69, 112, 255).
Aa
Black text reads best on this color (5.01:1).
About this color
#4570FF is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.218 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.030 away. Black text reads best on it, at 5.01:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.218) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.01:1 |
| White text | 4.18:1 |
Values
| HEX | #4570FF |
| RGB | rgb(69, 112, 255) |
| HSL | hsl(226, 100%, 64%) |
| OKLCH | oklch(59.8% 0.218 266.8) |
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 #4570FF | 4.18:1 | AA large text | Lc -73.8 | Content text, not long reading |
| Black text on #4570FF | 5.01:1 | AA | Lc 35.8 | Non-text elements, placeholder text |
| #4570FF text on white | 4.18:1 | AA large text | Lc 68.3 | Content text, not long reading |
| #4570FF text on black | 5.01:1 | AA | Lc -33.3 | 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
#F1F5FF
oklch(97% 0.014 268.5)
-
Step 100
100
#E1EAFF
oklch(93.7% 0.03 267.2)
-
Step 200
200
#C8D9FF
oklch(88.5% 0.056 266.2)
-
Step 300
300
#A5BFFF
oklch(80.9% 0.095 267.2)
-
Step 400
400
#759BFF
oklch(70.6% 0.153 266.8)
-
Step 500
500 (this color)
#4570FF
oklch(59.8% 0.218 266.8)
-
Step 600
600
#365EFB
oklch(55.6% 0.237 266.9)
-
Step 700
700
#2A4CDB
oklch(49.1% 0.22 266.9)
-
Step 800
800
#2340B1
oklch(42.8% 0.182 266.9)
-
Step 900
900
#20388C
oklch(37.8% 0.143 267)
-
Step 950
950
#122252
oklch(27.1% 0.09 266.4)
#4570FF 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 | 0.054 |
| Deuteranopia (no green cones) | #0074FC | 0.034 |
| Tritanopia (no blue cones) | #0093AD | 0.172 |
| Achromatopsia (no color) | #7C7C7C | 0.218 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4570FF
#4570FF
oklch(59.8% 0.218 266.8)
- #9F7900
#9F7900
oklch(59.7% 0.122 86.5)
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 #4570FF, closest first.
No curated palette has a color within ΔE 0.04 of #4570FF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.030
- Neon Blue #4361EE ΔE 0.043
- Cerulean Blue #056EEE ΔE 0.046
- Royal Blue #4169E1 ΔE 0.048
- Bright Blue #0165FC ΔE 0.050
- Cornflower #6A79F7 ΔE 0.052
- Azul #1D5DEC ΔE 0.066
- Medium Slate Blue #7B68EE ΔE 0.071
Use #4570FF 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.