#4F9CF4
Closest named color: Chefchaouen Blue (#4895EF). oklch(68.4% 0.151 253.5), rgb(79, 156, 244).
Aa
Black text reads best on this color (7.39:1).
About this color
#4F9CF4 is a medium-light, vivid blue. In OKLCH its lightness is 68%, its chroma 0.151 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.021 away. Black text reads best on it, at 7.39:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.39:1 |
| White text | 2.84:1 |
Values
| HEX | #4F9CF4 |
| RGB | rgb(79, 156, 244) |
| HSL | hsl(212, 88%, 63%) |
| OKLCH | oklch(68.4% 0.151 253.5) |
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 #4F9CF4 | 2.84:1 | Fails | Lc -59.4 | Large or bold text, headings |
| Black text on #4F9CF4 | 7.39:1 | AAA | Lc 49.9 | Large or bold text, headings |
| #4F9CF4 text on white | 2.84:1 | Fails | Lc 54.2 | Large or bold text, headings |
| #4F9CF4 text on black | 7.39:1 | AAA | Lc -47.7 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DEEBFC
oklch(93.5% 0.027 255.1)
-
Step 200
200
#C2DCFC
oklch(88.6% 0.052 253.7)
-
Step 300
300
#95C4FD
oklch(80.8% 0.095 253.7)
-
Step 400
400 (this color)
#4F9CF4
oklch(68.4% 0.151 253.5)
-
Step 500
500
#0D89FA
oklch(63.2% 0.194 253.5)
-
Step 600
600
#0072D5
oklch(55.5% 0.175 253.6)
-
Step 700
700
#0060B4
oklch(49.1% 0.153 253.4)
-
Step 800
800
#004E95
oklch(42.6% 0.134 253.6)
-
Step 900
900
#00417E
oklch(37.7% 0.118 253.6)
-
Step 950
950
#03264C
oklch(26.9% 0.08 254)
#4F9CF4 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) | #75A2F8 | 0.043 |
| Deuteranopia (no green cones) | #5D92F2 | 0.027 |
| Tritanopia (no blue cones) | #00B0BC | 0.118 |
| Achromatopsia (no color) | #999999 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F9CF4
#4F9CF4
oklch(68.4% 0.151 253.5)
- #CE8900
#CE8900
oklch(68.3% 0.145 73.6)
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 #4F9CF4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.021
- Cornflower Blue #6495ED ΔE 0.024
- Dark Sky Blue #448EE4 ΔE 0.044
- Dodger Blue #1E90FF ΔE 0.050
- Soft Blue #6488EA ΔE 0.052
- Periwinkle Blue #8F99FB ΔE 0.070
- Perrywinkle #8F8CE7 ΔE 0.076
- Lavender Blue #8B88F8 ΔE 0.079
Use #4F9CF4 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.