#5BC4DE
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(76.8% 0.103 216.5), rgb(91, 196, 222).
Aa
Black text reads best on this color (10.39:1).
About this color
#5BC4DE is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 77%, its chroma 0.103 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.026 away. Black text reads best on it, at 10.39:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 10.39:1 |
| White text | 2.02:1 |
Values
| HEX | #5BC4DE |
| RGB | rgb(91, 196, 222) |
| HSL | hsl(192, 66%, 61%) |
| OKLCH | oklch(76.8% 0.103 216.5) |
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 #5BC4DE | 2.02:1 | Fails | Lc -43.5 | Non-text elements, placeholder text |
| Black text on #5BC4DE | 10.39:1 | AAA | Lc 64.9 | Content text, not long reading |
| #5BC4DE text on white | 2.02:1 | Fails | Lc 39.0 | Non-text elements, placeholder text |
| #5BC4DE text on black | 10.39:1 | AAA | Lc -63.4 | Content text, not long reading |
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 300.
-
Step 50
50
#ECF8FB
oklch(97.1% 0.013 214.4)
-
Step 100
100
#D5EFF7
oklch(93.6% 0.029 218.2)
-
Step 200
200
#AFE3F2
oklch(88.5% 0.057 217.4)
-
Step 300
300 (this color)
#5BC4DE
oklch(76.8% 0.103 216.5)
-
Step 400
400
#00B3D3
oklch(70.7% 0.126 216.7)
-
Step 500
500
#009AB5
oklch(63.2% 0.112 216)
-
Step 600
600
#008199
oklch(55.6% 0.099 216.9)
-
Step 700
700
#006C81
oklch(49% 0.088 217.4)
-
Step 800
800
#00596A
oklch(42.8% 0.076 216.6)
-
Step 900
900
#004A58
oklch(37.7% 0.067 215.8)
-
Step 950
950
#002C35
oklch(27% 0.048 215.4)
#5BC4DE 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) | #B2BFDF | 0.090 |
| Deuteranopia (no green cones) | #9FB0DE | 0.082 |
| Tritanopia (no blue cones) | #00CDCC | 0.053 |
| Achromatopsia (no color) | #B6B6B6 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BC4DE
#5BC4DE
oklch(76.8% 0.103 216.5)
- #ED9C85
#ED9C85
oklch(76.8% 0.103 36.6)
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 #5BC4DE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.026
- Lightblue #7BC8F6 ΔE 0.047
- Dark Turquoise #00CED1 ΔE 0.049
- Bright Sky Blue #02CCFE ΔE 0.050
- Medium Turquoise #48D1CC ΔE 0.052
- Sky Blue #87CEEB ΔE 0.053
- Aqua Blue #02D8E9 ΔE 0.056
- Light Cornflower Blue #98C1D9 ΔE 0.057
Use #5BC4DE 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.