#4BACFB
Closest named color: Deep Sky Blue (#00BFFF). oklch(72.2% 0.147 246.4), rgb(75, 172, 251).
Aa
Black text reads best on this color (8.59:1).
About this color
#4BACFB is a medium-light, vivid blue. In OKLCH its lightness is 72%, its chroma 0.147 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.052 away. Black text reads best on it, at 8.59:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 8.59:1 |
| White text | 2.44:1 |
Values
| HEX | #4BACFB |
| RGB | rgb(75, 172, 251) |
| HSL | hsl(207, 96%, 64%) |
| OKLCH | oklch(72.2% 0.147 246.4) |
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 #4BACFB | 2.44:1 | Fails | Lc -52.8 | Large or bold text, headings |
| Black text on #4BACFB | 8.59:1 | AAA | Lc 56.2 | Large or bold text, headings |
| #4BACFB text on white | 2.44:1 | Fails | Lc 47.8 | Large or bold text, headings |
| #4BACFB text on black | 8.59:1 | AAA | Lc -54.3 | 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
#EFF6FD
oklch(97% 0.012 248)
-
Step 100
100
#DCECFB
oklch(93.6% 0.027 246.3)
-
Step 200
200
#BFDDFA
oklch(88.5% 0.051 247.5)
-
Step 300
300
#8FC7F9
oklch(80.9% 0.092 246.2)
-
Step 400
400 (this color)
#4BACFB
oklch(72.2% 0.147 246.4)
-
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)
#4BACFB 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) | #88AFFE | 0.059 |
| Deuteranopia (no green cones) | #709EF9 | 0.044 |
| Tritanopia (no blue cones) | #00BFC8 | 0.108 |
| Achromatopsia (no color) | #A6A6A6 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4BACFB
#4BACFB
oklch(72.2% 0.147 246.4)
- #E2902A
#E2902A
oklch(72.2% 0.147 66.2)
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 #4BACFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.052
- Cornflower Blue #6495ED ΔE 0.060
- Chefchaouen Blue #4895EF ΔE 0.062
- Carolina Blue #8AB8FE ΔE 0.071
- Periwinkle Blue #8F99FB ΔE 0.078
- Dark Sky Blue #448EE4 ΔE 0.083
- Dodger Blue #1E90FF ΔE 0.084
- Bright Sky Blue #02CCFE ΔE 0.086
Use #4BACFB 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.