#4DB8DD
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(73.5% 0.11 224.3), rgb(77, 184, 221).
Aa
Black text reads best on this color (9.21:1).
About this color
#4DB8DD is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 74%, its chroma 0.110 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.048 away. Black text reads best on it, at 9.21:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 9.21:1 |
| White text | 2.27:1 |
Values
| HEX | #4DB8DD |
| RGB | rgb(77, 184, 221) |
| HSL | hsl(195, 68%, 58%) |
| OKLCH | oklch(73.5% 0.11 224.3) |
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 #4DB8DD | 2.27:1 | Fails | Lc -49.5 | Large or bold text, headings |
| Black text on #4DB8DD | 9.21:1 | AAA | Lc 59.3 | Large or bold text, headings |
| #4DB8DD text on white | 2.27:1 | Fails | Lc 44.6 | Non-text elements, placeholder text |
| #4DB8DD text on black | 9.21:1 | AAA | Lc -57.5 | 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
#BFDFEC
oklch(88.4% 0.038 224.3)
-
Step 300
300
#8FCBE2
oklch(80.9% 0.069 223.8)
-
Step 400
400 (this color)
#4DB8DD
oklch(73.5% 0.11 224.3)
-
Step 500
500
#0098BF
oklch(63.2% 0.119 224.4)
-
Step 600
600
#0080A1
oklch(55.7% 0.105 224.1)
-
Step 700
700
#006B88
oklch(49.1% 0.093 224.9)
-
Step 800
800
#005870
oklch(42.8% 0.081 224.4)
-
Step 900
900
#00495D
oklch(37.7% 0.071 223.8)
-
Step 950
950
#002B39
oklch(26.9% 0.051 225.5)
#4DB8DD 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) | #A3B4DF | 0.086 |
| Deuteranopia (no green cones) | #8FA5DD | 0.077 |
| Tritanopia (no blue cones) | #00C3C4 | 0.061 |
| Achromatopsia (no color) | #ACACAC | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4DB8DD
#4DB8DD
oklch(73.5% 0.11 224.3)
- #E3926F
#E3926F
oklch(73.5% 0.11 44)
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 #4DB8DD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.048
- Deep Sky Blue #00BFFF ΔE 0.050
- Turquoise Blue #06B1C4 ΔE 0.051
- Bright Sky Blue #02CCFE ΔE 0.062
- Lightblue #7BC8F6 ΔE 0.069
- Dark Turquoise #00CED1 ΔE 0.071
- Greyblue #77A1B5 ΔE 0.075
- Carolina Blue #8AB8FE ΔE 0.078
Use #4DB8DD 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.