#4FA3E9
Closest named color: Cornflower Blue (#6495ED). oklch(69.4% 0.132 246.4), rgb(79, 163, 233).
Aa
Black text reads best on this color (7.74:1).
About this color
#4FA3E9 is a medium-light, moderately saturated blue. In OKLCH its lightness is 69%, its chroma 0.132 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.041 away. Black text reads best on it, at 7.74:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.74:1 |
| White text | 2.71:1 |
Values
| HEX | #4FA3E9 |
| RGB | rgb(79, 163, 233) |
| HSL | hsl(207, 78%, 61%) |
| OKLCH | oklch(69.4% 0.132 246.4) |
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 #4FA3E9 | 2.71:1 | Fails | Lc -57.5 | Large or bold text, headings |
| Black text on #4FA3E9 | 7.74:1 | AAA | Lc 51.8 | Large or bold text, headings |
| #4FA3E9 text on white | 2.71:1 | Fails | Lc 52.3 | Large or bold text, headings |
| #4FA3E9 text on black | 7.74:1 | AAA | Lc -49.6 | 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
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DEECF9
oklch(93.6% 0.023 246)
-
Step 200
200
#C1DDF6
oklch(88.5% 0.046 245.3)
-
Step 300
300
#95C6F3
oklch(80.8% 0.082 246.7)
-
Step 400
400 (this color)
#4FA3E9
oklch(69.4% 0.132 246.4)
-
Step 500
500
#008FE5
oklch(63.1% 0.163 246.3)
-
Step 600
600
#0078C2
oklch(55.6% 0.145 246.5)
-
Step 700
700
#0065A4
oklch(49.2% 0.127 246.3)
-
Step 800
800
#005287
oklch(42.6% 0.111 246.5)
-
Step 900
900
#004472
oklch(37.6% 0.099 246.8)
-
Step 950
950
#002846
oklch(26.9% 0.07 246.6)
#4FA3E9 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) | #84A5EC | 0.054 |
| Deuteranopia (no green cones) | #6F96E8 | 0.042 |
| Tritanopia (no blue cones) | #00B4BC | 0.099 |
| Achromatopsia (no color) | #9D9D9D | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FA3E9
#4FA3E9
oklch(69.4% 0.132 246.4)
- #D38A35
#D38A35
oklch(69.4% 0.132 66.1)
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 #4FA3E9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.041
- Chefchaouen Blue #4895EF ΔE 0.042
- Dark Sky Blue #448EE4 ΔE 0.059
- Soft Blue #6488EA ΔE 0.072
- Dodger Blue #1E90FF ΔE 0.074
- Deep Sky Blue #00BFFF ΔE 0.075
- Periwinkle Blue #8F99FB ΔE 0.078
- Faded Blue #658CBB ΔE 0.081
Use #4FA3E9 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.