#5BBDD2
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(74.7% 0.096 213.7), rgb(91, 189, 210).
Aa
Black text reads best on this color (9.65:1).
About this color
#5BBDD2 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 75%, its chroma 0.096 and its hue 214°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.046 away. Black text reads best on it, at 9.65:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 9.65:1 |
| White text | 2.17:1 |
Values
| HEX | #5BBDD2 |
| RGB | rgb(91, 189, 210) |
| HSL | hsl(191, 57%, 59%) |
| OKLCH | oklch(74.7% 0.096 213.7) |
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 #5BBDD2 | 2.17:1 | Fails | Lc -47.3 | Large or bold text, headings |
| Black text on #5BBDD2 | 9.65:1 | AAA | Lc 61.4 | Content text, not long reading |
| #5BBDD2 text on white | 2.17:1 | Fails | Lc 42.6 | Non-text elements, placeholder text |
| #5BBDD2 text on black | 9.65:1 | AAA | Lc -59.6 | 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
#F0F7F9
oklch(97.1% 0.008 216.6)
-
Step 100
100
#DEEDF1
oklch(93.6% 0.017 215.5)
-
Step 200
200
#C1DFE7
oklch(88.4% 0.034 215.6)
-
Step 300
300
#94CBD8
oklch(80.8% 0.06 213.9)
-
Step 400
400 (this color)
#5BBDD2
oklch(74.7% 0.096 213.7)
-
Step 500
500
#009AB2
oklch(63.1% 0.111 213.9)
-
Step 600
600
#008196
oklch(55.5% 0.098 214.4)
-
Step 700
700
#006D7E
oklch(49.1% 0.086 213.3)
-
Step 800
800
#005968
oklch(42.7% 0.075 214.2)
-
Step 900
900
#004A57
oklch(37.6% 0.066 214.5)
-
Step 950
950
#002C34
oklch(26.9% 0.047 213.2)
#5BBDD2 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) | #ADB7D3 | 0.087 |
| Deuteranopia (no green cones) | #9BAAD2 | 0.079 |
| Tritanopia (no blue cones) | #00C5C3 | 0.050 |
| Achromatopsia (no color) | #B0B0B0 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BBDD2
#5BBDD2
oklch(74.7% 0.096 213.7)
- #E39785
#E39785
oklch(74.8% 0.096 33.9)
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 #5BBDD2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.046
- Dark Turquoise #00CED1 ΔE 0.054
- Turquoise Blue #06B1C4 ΔE 0.057
- Medium Turquoise #48D1CC ΔE 0.060
- Light Cornflower Blue #98C1D9 ΔE 0.064
- Lightblue #7BC8F6 ΔE 0.065
- Topaz #13BBAF ΔE 0.066
- Bright Sky Blue #02CCFE ΔE 0.067
Use #5BBDD2 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.