#4F83FF
Closest named color: Cornflower (#6A79F7). oklch(63.9% 0.193 264.5), rgb(79, 131, 255).
Aa
Black text reads best on this color (6.02:1).
About this color
#4F83FF is a medium-light, vivid blue. In OKLCH its lightness is 64%, its chroma 0.193 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.036 away. Black text reads best on it, at 6.02:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.193) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 6.02:1 |
| White text | 3.48:1 |
Values
| HEX | #4F83FF |
| RGB | rgb(79, 131, 255) |
| HSL | hsl(222, 100%, 65%) |
| OKLCH | oklch(63.9% 0.193 264.5) |
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 #4F83FF | 3.48:1 | AA large text | Lc -67.5 | Content text, not long reading |
| Black text on #4F83FF | 6.02:1 | AA | Lc 42.0 | Non-text elements, placeholder text |
| #4F83FF text on white | 3.48:1 | AA large text | Lc 62.0 | Content text, not long reading |
| #4F83FF text on black | 6.02:1 | AA | Lc -39.7 | 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
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C8D9FD
oklch(88.4% 0.053 265.3)
-
Step 300
300
#A2C0FE
oklch(80.8% 0.094 264.4)
-
Step 400
400
#719DFE
oklch(70.7% 0.15 264.4)
-
Step 500
500 (this color)
#4F83FF
oklch(63.9% 0.193 264.5)
-
Step 600
600
#3266EB
oklch(55.6% 0.209 264.4)
-
Step 700
700
#2653CD
oklch(49% 0.195 264.6)
-
Step 800
800
#2045A6
oklch(42.7% 0.162 264.5)
-
Step 900
900
#1F3C83
oklch(37.8% 0.125 264.4)
-
Step 950
950
#12244D
oklch(27.1% 0.079 264)
#4F83FF 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) | #3D92FF | 0.038 |
| Deuteranopia (no green cones) | #0082FC | 0.040 |
| Tritanopia (no blue cones) | #00A0B5 | 0.155 |
| Achromatopsia (no color) | #898989 | 0.193 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F83FF
#4F83FF
oklch(63.9% 0.193 264.5)
- #B18400
#B18400
oklch(64% 0.131 84.4)
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 #4F83FF, closest first.
No curated palette has a color within ΔE 0.04 of #4F83FF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.036
- Dodger Blue #1E90FF ΔE 0.040
- Soft Blue #6488EA ΔE 0.042
- Clear Blue #247AFD ΔE 0.042
- Dark Sky Blue #448EE4 ΔE 0.054
- Chefchaouen Blue #4895EF ΔE 0.055
- Cornflower Blue #6495ED ΔE 0.063
- Lavender Blue #8B88F8 ΔE 0.075
Use #4F83FF 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.