#4BBDDF
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(74.7% 0.112 221.1), rgb(75, 189, 223).
Aa
Black text reads best on this color (9.64:1).
About this color
#4BBDDF is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 75%, its chroma 0.112 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.036 away. Black text reads best on it, at 9.64:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 9.64:1 |
| White text | 2.17:1 |
Values
| HEX | #4BBDDF |
| RGB | rgb(75, 189, 223) |
| HSL | hsl(194, 70%, 58%) |
| OKLCH | oklch(74.7% 0.112 221.1) |
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 #4BBDDF | 2.17:1 | Fails | Lc -47.2 | Large or bold text, headings |
| Black text on #4BBDDF | 9.64:1 | AAA | Lc 61.4 | Content text, not long reading |
| #4BBDDF text on white | 2.17:1 | Fails | Lc 42.5 | Non-text elements, placeholder text |
| #4BBDDF text on black | 9.64:1 | AAA | Lc -59.7 | 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
#EFF7FA
oklch(97.1% 0.009 222.1)
-
Step 100
100
#DCEDF4
oklch(93.6% 0.02 224.3)
-
Step 200
200
#BEE0EB
oklch(88.6% 0.039 219.3)
-
Step 300
300
#8DCCE1
oklch(81% 0.071 220.8)
-
Step 400
400 (this color)
#4BBDDF
oklch(74.7% 0.112 221.1)
-
Step 500
500
#0099BB
oklch(63.2% 0.116 221)
-
Step 600
600
#00809D
oklch(55.6% 0.102 221.1)
-
Step 700
700
#006C85
oklch(49.2% 0.09 221.2)
-
Step 800
800
#00586D
oklch(42.6% 0.078 221.3)
-
Step 900
900
#00495B
oklch(37.6% 0.069 221.4)
-
Step 950
950
#002C37
oklch(27.1% 0.049 219.4)
#4BBDDF 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) | #A9B8E1 | 0.093 |
| Deuteranopia (no green cones) | #94A9DF | 0.082 |
| Tritanopia (no blue cones) | #00C8C8 | 0.058 |
| Achromatopsia (no color) | #B0B0B0 | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4BBDDF
#4BBDDF
oklch(74.7% 0.112 221.1)
- #E99475
#E99475
oklch(74.6% 0.112 40.8)
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 #4BBDDF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.036
- Deep Sky Blue #00BFFF ΔE 0.048
- Bright Sky Blue #02CCFE ΔE 0.052
- Turquoise Blue #06B1C4 ΔE 0.058
- Dark Turquoise #00CED1 ΔE 0.060
- Lightblue #7BC8F6 ΔE 0.061
- Medium Turquoise #48D1CC ΔE 0.071
- Aqua Blue #02D8E9 ΔE 0.072
Use #4BBDDF 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.