#4EA3FF
Closest named color: Cornflower Blue (#6495ED). oklch(70.5% 0.158 252.6), rgb(78, 163, 255).
Aa
Black text reads best on this color (8.00:1).
About this color
#4EA3FF is a medium-light, vivid blue. In OKLCH its lightness is 71%, its chroma 0.158 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.042 away. Black text reads best on it, at 8.00:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.158) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 8.00:1 |
| White text | 2.62:1 |
Values
| HEX | #4EA3FF |
| RGB | rgb(78, 163, 255) |
| HSL | hsl(211, 100%, 65%) |
| OKLCH | oklch(70.5% 0.158 252.6) |
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 #4EA3FF | 2.62:1 | Fails | Lc -56.0 | Large or bold text, headings |
| Black text on #4EA3FF | 8.00:1 | AAA | Lc 53.2 | Large or bold text, headings |
| #4EA3FF text on white | 2.62:1 | Fails | Lc 50.8 | Large or bold text, headings |
| #4EA3FF text on black | 8.00:1 | AAA | Lc -51.1 | Large or bold text, headings |
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 400.
-
Step 50
50
#EFF6FE
oklch(97% 0.013 251.6)
-
Step 100
100
#DDECFD
oklch(93.7% 0.028 251.5)
-
Step 200
200
#C0DCFD
oklch(88.5% 0.055 252.7)
-
Step 300
300
#92C5FF
oklch(80.9% 0.099 252.2)
-
Step 400
400 (this color)
#4EA3FF
oklch(70.5% 0.158 252.6)
-
Step 500
500
#008AF8
oklch(63.2% 0.191 252.4)
-
Step 600
600
#0073D2
oklch(55.5% 0.17 252.7)
-
Step 700
700
#0061B2
oklch(49.2% 0.149 252.5)
-
Step 800
800
#004F93
oklch(42.7% 0.13 252.6)
-
Step 900
900
#00427C
oklch(37.8% 0.114 252.4)
-
Step 950
950
#00264D
oklch(26.9% 0.083 253)
#4EA3FF 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) | #79A9FF | 0.045 |
| Deuteranopia (no green cones) | #5F98FD | 0.030 |
| Tritanopia (no blue cones) | #00B9C5 | 0.122 |
| Achromatopsia (no color) | #A0A0A0 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4EA3FF
#4EA3FF
oklch(70.5% 0.158 252.6)
- #D88E00
#D88E00
oklch(70.5% 0.151 72.5)
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 #4EA3FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.042
- Chefchaouen Blue #4895EF ΔE 0.042
- Dodger Blue #1E90FF ΔE 0.062
- Dark Sky Blue #448EE4 ΔE 0.065
- Periwinkle Blue #8F99FB ΔE 0.068
- Soft Blue #6488EA ΔE 0.071
- Deep Sky Blue #00BFFF ΔE 0.076
- Perrywinkle #8F8CE7 ΔE 0.086
Use #4EA3FF 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.