#5DBDDB
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(75.2% 0.1 221.1), rgb(93, 189, 219).
Aa
Black text reads best on this color (9.76:1).
About this color
#5DBDDB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 75%, its chroma 0.100 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.038 away. Black text reads best on it, at 9.76:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 9.76:1 |
| White text | 2.15:1 |
Values
| HEX | #5DBDDB |
| RGB | rgb(93, 189, 219) |
| HSL | hsl(194, 64%, 61%) |
| OKLCH | oklch(75.2% 0.1 221.1) |
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 #5DBDDB | 2.15:1 | Fails | Lc -46.7 | Large or bold text, headings |
| Black text on #5DBDDB | 9.76:1 | AAA | Lc 61.9 | Content text, not long reading |
| #5DBDDB text on white | 2.15:1 | Fails | Lc 42.0 | Non-text elements, placeholder text |
| #5DBDDB text on black | 9.76:1 | AAA | Lc -60.2 | 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
#F0F7F9
oklch(97.1% 0.008 216.6)
-
Step 100
100
#DEEDF2
oklch(93.6% 0.017 219.7)
-
Step 200
200
#C1DFE9
oklch(88.5% 0.035 219.9)
-
Step 300
300
#94CADD
oklch(80.8% 0.062 221.7)
-
Step 400
400 (this color)
#5DBDDB
oklch(75.2% 0.1 221.1)
-
Step 500
500
#0099BA
oklch(63.2% 0.115 220.3)
-
Step 600
600
#00809D
oklch(55.6% 0.102 221.1)
-
Step 700
700
#006C85
oklch(49.2% 0.09 221.2)
-
Step 800
800
#00586D
oklch(42.6% 0.078 221.3)
-
Step 900
900
#00495B
oklch(37.6% 0.069 221.4)
-
Step 950
950
#002C37
oklch(27.1% 0.049 219.4)
#5DBDDB 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) | #ABB9DD | 0.083 |
| Deuteranopia (no green cones) | #99ABDB | 0.074 |
| Tritanopia (no blue cones) | #00C7C6 | 0.060 |
| Achromatopsia (no color) | #B1B1B1 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5DBDDB
#5DBDDB
oklch(75.2% 0.1 221.1)
- #E5997D
#E5997D
oklch(75.2% 0.1 41)
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 #5DBDDB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.038
- Lightblue #7BC8F6 ΔE 0.055
- Bright Sky Blue #02CCFE ΔE 0.058
- Deep Sky Blue #00BFFF ΔE 0.058
- Light Cornflower Blue #98C1D9 ΔE 0.061
- Dark Turquoise #00CED1 ΔE 0.061
- Turquoise Blue #06B1C4 ΔE 0.064
- Light Grey Blue #9DBCD4 ΔE 0.064
Use #5DBDDB 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.