#4FA2F9
Closest named color: Cornflower Blue (#6495ED). oklch(70% 0.152 251.8), rgb(79, 162, 249).
Aa
Black text reads best on this color (7.86:1).
About this color
#4FA2F9 is a medium-light, vivid blue. In OKLCH its lightness is 70%, its chroma 0.152 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.037 away. Black text reads best on it, at 7.86:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.152) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.86:1 |
| White text | 2.66:1 |
Values
| HEX | #4FA2F9 |
| RGB | rgb(79, 162, 249) |
| HSL | hsl(211, 93%, 64%) |
| OKLCH | oklch(70% 0.152 251.8) |
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 #4FA2F9 | 2.66:1 | Fails | Lc -56.8 | Large or bold text, headings |
| Black text on #4FA2F9 | 7.86:1 | AAA | Lc 52.4 | Large or bold text, headings |
| #4FA2F9 text on white | 2.66:1 | Fails | Lc 51.6 | Large or bold text, headings |
| #4FA2F9 text on black | 7.86:1 | AAA | Lc -50.3 | 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
#DDECFC
oklch(93.7% 0.027 249.9)
-
Step 200
200
#C1DCFC
oklch(88.5% 0.053 252.8)
-
Step 300
300
#93C5FC
oklch(80.9% 0.094 251.4)
-
Step 400
400 (this color)
#4FA2F9
oklch(70% 0.152 251.8)
-
Step 500
500
#008AF6
oklch(63% 0.189 252)
-
Step 600
600
#0074D0
oklch(55.6% 0.166 251.9)
-
Step 700
700
#0061B0
oklch(49% 0.147 252)
-
Step 800
800
#005091
oklch(42.8% 0.126 251.5)
-
Step 900
900
#00427A
oklch(37.7% 0.112 251.7)
-
Step 950
950
#00274C
oklch(27.1% 0.08 251.6)
#4FA2F9 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) | #7BA7FD | 0.046 |
| Deuteranopia (no green cones) | #6397F7 | 0.031 |
| Tritanopia (no blue cones) | #00B6C2 | 0.116 |
| Achromatopsia (no color) | #9E9E9E | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FA2F9
#4FA2F9
oklch(70% 0.152 251.8)
- #D78C00
#D78C00
oklch(70% 0.15 71.7)
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 #4FA2F9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.037
- Chefchaouen Blue #4895EF ΔE 0.037
- Dark Sky Blue #448EE4 ΔE 0.060
- Dodger Blue #1E90FF ΔE 0.062
- Soft Blue #6488EA ΔE 0.067
- Periwinkle Blue #8F99FB ΔE 0.069
- Deep Sky Blue #00BFFF ΔE 0.077
- Perrywinkle #8F8CE7 ΔE 0.083
Use #4FA2F9 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.