#4FA1EF
Closest named color: Cornflower Blue (#6495ED). oklch(69.2% 0.14 249.5), rgb(79, 161, 239).
Aa
Black text reads best on this color (7.67:1).
About this color
#4FA1EF is a medium-light, vivid blue. In OKLCH its lightness is 69%, its chroma 0.140 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.034 away. Black text reads best on it, at 7.67:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.140) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.67:1 |
| White text | 2.73:1 |
Values
| HEX | #4FA1EF |
| RGB | rgb(79, 161, 239) |
| HSL | hsl(209, 83%, 62%) |
| OKLCH | oklch(69.2% 0.14 249.5) |
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 #4FA1EF | 2.73:1 | Fails | Lc -57.9 | Large or bold text, headings |
| Black text on #4FA1EF | 7.67:1 | AAA | Lc 51.4 | Large or bold text, headings |
| #4FA1EF text on white | 2.73:1 | Fails | Lc 52.6 | Large or bold text, headings |
| #4FA1EF text on black | 7.67:1 | AAA | Lc -49.2 | 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
#DDECFB
oklch(93.6% 0.026 248.1)
-
Step 200
200
#C1DCF9
oklch(88.4% 0.049 250.3)
-
Step 300
300
#95C6F8
oklch(81% 0.088 249.5)
-
Step 400
400 (this color)
#4FA1EF
oklch(69.2% 0.14 249.5)
-
Step 500
500
#008DEE
oklch(63.2% 0.176 249.3)
-
Step 600
600
#0076C9
oklch(55.6% 0.155 249.4)
-
Step 700
700
#0063AA
oklch(49.1% 0.137 249.4)
-
Step 800
800
#00518D
oklch(42.7% 0.12 249.5)
-
Step 900
900
#004376
oklch(37.6% 0.105 249.5)
-
Step 950
950
#012849
oklch(27.2% 0.074 249.3)
#4FA1EF 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) | #7EA5F2 | 0.049 |
| Deuteranopia (no green cones) | #6895ED | 0.036 |
| Tritanopia (no blue cones) | #00B3BD | 0.107 |
| Achromatopsia (no color) | #9C9C9C | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FA1EF
#4FA1EF
oklch(69.2% 0.14 249.5)
- #D38A22
#D38A22
oklch(69.2% 0.14 69.5)
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 #4FA1EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.034
- Chefchaouen Blue #4895EF ΔE 0.034
- Dark Sky Blue #448EE4 ΔE 0.054
- Dodger Blue #1E90FF ΔE 0.065
- Soft Blue #6488EA ΔE 0.065
- Periwinkle Blue #8F99FB ΔE 0.073
- Deep Sky Blue #00BFFF ΔE 0.079
- Perrywinkle #8F8CE7 ΔE 0.082
Use #4FA1EF 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.