#4DABFB
Closest named color: Deep Sky Blue (#00BFFF). oklch(72% 0.147 247.3), rgb(77, 171, 251).
Aa
Black text reads best on this color (8.53:1).
About this color
#4DABFB is a medium-light, vivid blue. In OKLCH its lightness is 72%, its chroma 0.147 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.054 away. Black text reads best on it, at 8.53:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 8.53:1 |
| White text | 2.46:1 |
Values
| HEX | #4DABFB |
| RGB | rgb(77, 171, 251) |
| HSL | hsl(208, 96%, 64%) |
| OKLCH | oklch(72% 0.147 247.3) |
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 #4DABFB | 2.46:1 | Fails | Lc -53.1 | Large or bold text, headings |
| Black text on #4DABFB | 8.53:1 | AAA | Lc 55.9 | Large or bold text, headings |
| #4DABFB text on white | 2.46:1 | Fails | Lc 48.1 | Large or bold text, headings |
| #4DABFB text on black | 8.53:1 | AAA | Lc -53.9 | 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
#DCECFB
oklch(93.6% 0.027 246.3)
-
Step 200
200
#BFDDFA
oklch(88.5% 0.051 247.5)
-
Step 300
300
#90C6F9
oklch(80.8% 0.092 247.6)
-
Step 400
400 (this color)
#4DABFB
oklch(72% 0.147 247.3)
-
Step 500
500
#008EE8
oklch(63% 0.168 247.5)
-
Step 600
600
#0077C4
oklch(55.5% 0.148 247.6)
-
Step 700
700
#0064A6
oklch(49.1% 0.131 247.6)
-
Step 800
800
#005289
oklch(42.7% 0.113 247.3)
-
Step 900
900
#004473
oklch(37.7% 0.1 247.4)
-
Step 950
950
#002847
oklch(27% 0.072 247.4)
#4DABFB 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) | #87AEFE | 0.057 |
| Deuteranopia (no green cones) | #6F9EF9 | 0.041 |
| Tritanopia (no blue cones) | #00BEC8 | 0.108 |
| Achromatopsia (no color) | #A5A5A5 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4DABFB
#4DABFB
oklch(72% 0.147 247.3)
- #E09027
#E09027
oklch(71.9% 0.146 67.4)
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 #4DABFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.054
- Cornflower Blue #6495ED ΔE 0.058
- Chefchaouen Blue #4895EF ΔE 0.060
- Carolina Blue #8AB8FE ΔE 0.071
- Periwinkle Blue #8F99FB ΔE 0.076
- Dark Sky Blue #448EE4 ΔE 0.081
- Dodger Blue #1E90FF ΔE 0.082
- Bright Sky Blue #02CCFE ΔE 0.088
Use #4DABFB 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.