#4FAAF4
Closest named color: Cornflower Blue (#6495ED). oklch(71.5% 0.139 246), rgb(79, 170, 244).
Aa
Black text reads best on this color (8.38:1).
About this color
#4FAAF4 is a medium-light, moderately saturated blue. In OKLCH its lightness is 71%, its chroma 0.139 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.055 away. Black text reads best on it, at 8.38:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 8.38:1 |
| White text | 2.50:1 |
Values
| HEX | #4FAAF4 |
| RGB | rgb(79, 170, 244) |
| HSL | hsl(207, 88%, 63%) |
| OKLCH | oklch(71.5% 0.139 246) |
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 #4FAAF4 | 2.50:1 | Fails | Lc -53.9 | Large or bold text, headings |
| Black text on #4FAAF4 | 8.38:1 | AAA | Lc 55.2 | Large or bold text, headings |
| #4FAAF4 text on white | 2.50:1 | Fails | Lc 48.8 | Large or bold text, headings |
| #4FAAF4 text on black | 8.38:1 | AAA | Lc -53.1 | 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
#EFF6FD
oklch(97% 0.012 248)
-
Step 100
100
#DDECFA
oklch(93.6% 0.025 246.2)
-
Step 200
200
#C0DDF8
oklch(88.5% 0.048 246.5)
-
Step 300
300
#92C7F6
oklch(81% 0.087 245.9)
-
Step 400
400 (this color)
#4FAAF4
oklch(71.5% 0.139 246)
-
Step 500
500
#008FE4
oklch(63% 0.162 246)
-
Step 600
600
#0078C1
oklch(55.5% 0.143 246.2)
-
Step 700
700
#0065A3
oklch(49.1% 0.126 245.9)
-
Step 800
800
#005387
oklch(42.8% 0.11 245.8)
-
Step 900
900
#004571
oklch(37.8% 0.096 245.5)
-
Step 950
950
#002846
oklch(26.9% 0.07 246.6)
#4FAAF4 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) | #89ACF7 | 0.058 |
| Deuteranopia (no green cones) | #729DF3 | 0.043 |
| Tritanopia (no blue cones) | #00BCC4 | 0.103 |
| Achromatopsia (no color) | #A4A4A4 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FAAF4
#4FAAF4
oklch(71.5% 0.139 246)
- #DD8F34
#DD8F34
oklch(71.5% 0.139 65.7)
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 #4FAAF4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.055
- Deep Sky Blue #00BFFF ΔE 0.056
- Chefchaouen Blue #4895EF ΔE 0.057
- Carolina Blue #8AB8FE ΔE 0.073
- Periwinkle Blue #8F99FB ΔE 0.077
- Dark Sky Blue #448EE4 ΔE 0.078
- Dodger Blue #1E90FF ΔE 0.084
- Turquoise Blue #06B1C4 ΔE 0.087
Use #4FAAF4 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.