#5BBDE2
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(75.4% 0.106 225.6), rgb(91, 189, 226).
Aa
Black text reads best on this color (9.82:1).
About this color
#5BBDE2 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 75%, its chroma 0.106 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.033 away. Black text reads best on it, at 9.82:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 9.82:1 |
| White text | 2.13:1 |
Values
| HEX | #5BBDE2 |
| RGB | rgb(91, 189, 226) |
| HSL | hsl(196, 70%, 62%) |
| OKLCH | oklch(75.4% 0.106 225.6) |
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 #5BBDE2 | 2.13:1 | Fails | Lc -46.4 | Large or bold text, headings |
| Black text on #5BBDE2 | 9.82:1 | AAA | Lc 62.2 | Content text, not long reading |
| #5BBDE2 text on white | 2.13:1 | Fails | Lc 41.7 | Non-text elements, placeholder text |
| #5BBDE2 text on black | 9.82:1 | AAA | Lc -60.5 | 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 400.
-
Step 50
50
#F0F7FA
oklch(97.2% 0.008 225.1)
-
Step 100
100
#DDEDF4
oklch(93.6% 0.019 225.7)
-
Step 200
200
#C1DFEC
oklch(88.6% 0.036 225.8)
-
Step 300
300
#92CAE1
oklch(80.8% 0.066 225.4)
-
Step 400
400 (this color)
#5BBDE2
oklch(75.4% 0.106 225.6)
-
Step 500
500
#0097C0
oklch(63% 0.12 225.7)
-
Step 600
600
#007FA2
oklch(55.5% 0.106 225.7)
-
Step 700
700
#006B89
oklch(49.1% 0.094 225.7)
-
Step 800
800
#005871
oklch(42.8% 0.081 225.4)
-
Step 900
900
#00495E
oklch(37.7% 0.071 225)
-
Step 950
950
#002B39
oklch(26.9% 0.051 225.5)
#5BBDE2 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) | #A9B9E4 | 0.081 |
| Deuteranopia (no green cones) | #96ABE2 | 0.072 |
| Tritanopia (no blue cones) | #00C8C9 | 0.065 |
| Achromatopsia (no color) | #B1B1B1 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BBDE2
#5BBDE2
oklch(75.4% 0.106 225.6)
- #E79A75
#E79A75
oklch(75.5% 0.106 46.3)
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 #5BBDE2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.033
- Deep Sky Blue #00BFFF ΔE 0.050
- Lightblue #7BC8F6 ΔE 0.050
- Bright Sky Blue #02CCFE ΔE 0.052
- Sky #82CAFC ΔE 0.062
- Light Cornflower Blue #98C1D9 ΔE 0.063
- Sky Blue #87CEEB ΔE 0.065
- Carolina Blue #8AB8FE ΔE 0.066
Use #5BBDE2 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.