#4171F8
Closest named color: Clear Blue (#247AFD). oklch(59.3% 0.209 265.5), rgb(65, 113, 248).
Aa
Black text reads best on this color (4.94:1).
About this color
#4171F8 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.209 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.026 away. Black text reads best on it, at 4.94:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.209) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 4.94:1 |
| White text | 4.24:1 |
Values
| HEX | #4171F8 |
| RGB | rgb(65, 113, 248) |
| HSL | hsl(224, 93%, 61%) |
| OKLCH | oklch(59.3% 0.209 265.5) |
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 #4171F8 | 4.24:1 | AA large text | Lc -74.3 | Content text, not long reading |
| Black text on #4171F8 | 4.94:1 | AA | Lc 35.3 | Non-text elements, placeholder text |
| #4171F8 text on white | 4.24:1 | AA large text | Lc 68.8 | Content text, not long reading |
| #4171F8 text on black | 4.94:1 | AA | Lc -32.8 | 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
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C9D9FD
oklch(88.5% 0.053 266.4)
-
Step 300
300
#A4C0FE
oklch(81% 0.093 265.6)
-
Step 400
400
#739CFE
oklch(70.6% 0.151 265.6)
-
Step 500
500
#5180FC
oklch(63.2% 0.192 265.6)
-
Step 600
600 (this color)
#4171F8
oklch(59.3% 0.209 265.5)
-
Step 700
700
#2A53CD
oklch(49.2% 0.195 265.4)
-
Step 800
800
#2445A5
oklch(42.8% 0.16 265.5)
-
Step 900
900
#213B83
oklch(37.7% 0.125 265.7)
-
Step 950
950
#13234D
oklch(26.9% 0.08 265.6)
#4171F8 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) | #0084FD | 0.049 |
| Deuteranopia (no green cones) | #0073F5 | 0.031 |
| Tritanopia (no blue cones) | #0092AA | 0.164 |
| Achromatopsia (no color) | #7B7B7B | 0.209 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4171F8
#4171F8
oklch(59.3% 0.209 265.5)
- #9E7700
#9E7700
oklch(59.2% 0.121 85.6)
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 #4171F8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.026
- Cerulean Blue #056EEE ΔE 0.038
- Royal Blue #4169E1 ΔE 0.039
- Neon Blue #4361EE ΔE 0.039
- Bright Blue #0165FC ΔE 0.048
- Cornflower #6A79F7 ΔE 0.052
- Azul #1D5DEC ΔE 0.062
- Medium Slate Blue #7B68EE ΔE 0.072
Use #4171F8 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.