#4282F0
Closest named color: Clear Blue (#247AFD). oklch(62.2% 0.178 260.5), rgb(66, 130, 240).
Aa
Black text reads best on this color (5.68:1).
About this color
#4282F0 is a medium-light, vivid blue. In OKLCH its lightness is 62%, its chroma 0.178 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.037 away. Black text reads best on it, at 5.68:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.178) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.68:1 |
| White text | 3.69:1 |
Values
| HEX | #4282F0 |
| RGB | rgb(66, 130, 240) |
| HSL | hsl(218, 85%, 60%) |
| OKLCH | oklch(62.2% 0.178 260.5) |
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 #4282F0 | 3.69:1 | AA large text | Lc -69.6 | Content text, not long reading |
| Black text on #4282F0 | 5.68:1 | AA | Lc 39.9 | Non-text elements, placeholder text |
| #4282F0 text on white | 3.69:1 | AA large text | Lc 64.1 | Content text, not long reading |
| #4282F0 text on black | 5.68:1 | AA | Lc -37.5 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EBFB
oklch(93.7% 0.025 257.6)
-
Step 200
200
#C7DAFA
oklch(88.4% 0.049 260.9)
-
Step 300
300
#A0C2F9
oklch(80.9% 0.087 259.9)
-
Step 400
400
#6DA0F7
oklch(70.8% 0.139 260.5)
-
Step 500
500 (this color)
#4282F0
oklch(62.2% 0.178 260.5)
-
Step 600
600
#256BE2
oklch(55.5% 0.194 260.5)
-
Step 700
700
#1859C4
oklch(49.1% 0.179 260.3)
-
Step 800
800
#17499F
oklch(42.7% 0.15 260.6)
-
Step 900
900
#193E7E
oklch(37.6% 0.117 260.6)
-
Step 950
950
#10254A
oklch(27% 0.074 260.8)
#4282F0 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) | #488DF4 | 0.030 |
| Deuteranopia (no green cones) | #1F7DEE | 0.028 |
| Tritanopia (no blue cones) | #009CAD | 0.141 |
| Achromatopsia (no color) | #858585 | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4282F0
#4282F0
oklch(62.2% 0.178 260.5)
- #AE7C00
#AE7C00
oklch(62% 0.128 80.2)
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 #4282F0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.037
- Dark Sky Blue #448EE4 ΔE 0.039
- Dodger Blue #1E90FF ΔE 0.040
- Soft Blue #6488EA ΔE 0.040
- Cornflower #6A79F7 ΔE 0.046
- Chefchaouen Blue #4895EF ΔE 0.052
- Cornflower Blue #6495ED ΔE 0.065
- Cerulean Blue #056EEE ΔE 0.065
Use #4282F0 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.