#5BDBFF
Closest named color: Light Sky Blue (#87CEFA). oklch(83.4% 0.122 219.7), rgb(91, 219, 255).
Aa
Black text reads best on this color (13.02:1).
About this color
#5BDBFF is a light, moderately saturated teal or cyan. In OKLCH its lightness is 83%, its chroma 0.122 and its hue 220°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sky Blue (#87CEFA), ΔE 0.044 away. Black text reads best on it, at 13.02:1.
| Hue family | Teals and cyans |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Light Sky Blue (#87CEFA) |
| Black text | 13.02:1 |
| White text | 1.61:1 |
Values
| HEX | #5BDBFF |
| RGB | rgb(91, 219, 255) |
| HSL | hsl(193, 100%, 68%) |
| OKLCH | oklch(83.4% 0.122 219.7) |
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 #5BDBFF | 1.61:1 | Fails | Lc -30.7 | Non-text elements, placeholder text |
| Black text on #5BDBFF | 13.02:1 | AAA | Lc 76.6 | Fine for body text |
| #5BDBFF text on white | 1.61:1 | Fails | Lc 27.2 | Dividers and decoration only |
| #5BDBFF text on black | 13.02:1 | AAA | Lc -75.8 | Fine for body text |
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
#EAF8FD
oklch(97% 0.016 221.1)
-
Step 100
100
#D1F0FA
oklch(93.6% 0.035 219.2)
-
Step 200
200
#A7E4F8
oklch(88.4% 0.067 220.2)
-
Step 300
300 (this color)
#5BDBFF
oklch(83.4% 0.122 219.7)
-
Step 400
400
#00B2D7
oklch(70.6% 0.128 219.8)
-
Step 500
500
#0099B9
oklch(63.1% 0.115 219.7)
-
Step 600
600
#00809C
oklch(55.5% 0.101 220.3)
-
Step 700
700
#006C83
oklch(49.1% 0.089 219.3)
-
Step 800
800
#00586C
oklch(42.6% 0.078 220.2)
-
Step 900
900
#004A5A
oklch(37.8% 0.068 218.5)
-
Step 950
950
#002C37
oklch(27.1% 0.049 219.4)
#5BDBFF 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) | #C5D5FF | 0.103 |
| Deuteranopia (no green cones) | #ADC4FF | 0.092 |
| Tritanopia (no blue cones) | #00E7E6 | 0.062 |
| Achromatopsia (no color) | #CCCCCC | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BDBFF
#5BDBFF
oklch(83.4% 0.122 219.7)
- #FFB49A
#FFB49A
oklch(83.5% 0.095 39.9)
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 #5BDBFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sky Blue #87CEFA ΔE 0.044
- Sky Blue #87CEEB ΔE 0.046
- Aqua Blue #02D8E9 ΔE 0.047
- Sky #82CAFC ΔE 0.050
- Lightblue #7BC8F6 ΔE 0.051
- Vivid Sky Blue #4CC9F0 ΔE 0.052
- Robin's Egg #6DEDFD ΔE 0.054
- Bright Sky Blue #02CCFE ΔE 0.056
Use #5BDBFF 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.