#4170F1
Closest named color: Royal Blue (#4169E1). oklch(58.5% 0.201 265.4), rgb(65, 112, 241).
Aa
Black text reads best on this color (4.81:1).
About this color
#4170F1 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.201 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.029 away. Black text reads best on it, at 4.81:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.201) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.81:1 |
| White text | 4.36:1 |
Values
| HEX | #4170F1 |
| RGB | rgb(65, 112, 241) |
| HSL | hsl(224, 86%, 60%) |
| OKLCH | oklch(58.5% 0.201 265.4) |
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 #4170F1 | 4.36:1 | AA large text | Lc -75.2 | Fine for body text |
| Black text on #4170F1 | 4.81:1 | AA | Lc 34.3 | Non-text elements, placeholder text |
| #4170F1 text on white | 4.36:1 | AA large text | Lc 69.7 | Content text, not long reading |
| #4170F1 text on black | 4.81:1 | AA | Lc -31.9 | 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 600.
-
Step 50
50
#F1F5FE
oklch(97% 0.013 266.7)
-
Step 100
100
#E1EAFC
oklch(93.6% 0.026 264.4)
-
Step 200
200
#C9D9FB
oklch(88.4% 0.05 265.4)
-
Step 300
300
#A5C0FC
oklch(80.9% 0.09 265.7)
-
Step 400
400
#759DFA
oklch(70.7% 0.144 265.3)
-
Step 500
500
#5281F8
oklch(63.1% 0.185 265.3)
-
Step 600
600 (this color)
#4170F1
oklch(58.5% 0.201 265.4)
-
Step 700
700
#2C54C9
oklch(49.1% 0.188 265.5)
-
Step 800
800
#2546A2
oklch(42.8% 0.154 265.3)
-
Step 900
900
#223C81
oklch(37.8% 0.121 265.4)
-
Step 950
950
#14244B
oklch(27.1% 0.075 265)
#4170F1 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) | #0081F6 | 0.045 |
| Deuteranopia (no green cones) | #0071EE | 0.032 |
| Tritanopia (no blue cones) | #008FA6 | 0.158 |
| Achromatopsia (no color) | #797979 | 0.201 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4170F1
#4170F1
oklch(58.5% 0.201 265.4)
- #9C7500
#9C7500
oklch(58.5% 0.12 85.2)
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 #4170F1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.029
- Clear Blue #247AFD ΔE 0.031
- Cerulean Blue #056EEE ΔE 0.034
- Neon Blue #4361EE ΔE 0.035
- Bright Blue #0165FC ΔE 0.049
- Cornflower #6A79F7 ΔE 0.055
- Azul #1D5DEC ΔE 0.058
- Warm Blue #4B57DB ΔE 0.065
Use #4170F1 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.