#5BB4D3
Closest named color: Turquoise Blue (#06B1C4). oklch(72.7% 0.096 223.4), rgb(91, 180, 211).
Aa
Black text reads best on this color (8.91:1).
About this color
#5BB4D3 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 73%, its chroma 0.096 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.048 away. Black text reads best on it, at 8.91:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 8.91:1 |
| White text | 2.35:1 |
Values
| HEX | #5BB4D3 |
| RGB | rgb(91, 180, 211) |
| HSL | hsl(195, 58%, 59%) |
| OKLCH | oklch(72.7% 0.096 223.4) |
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 #5BB4D3 | 2.35:1 | Fails | Lc -51.2 | Large or bold text, headings |
| Black text on #5BB4D3 | 8.91:1 | AAA | Lc 57.7 | Large or bold text, headings |
| #5BB4D3 text on white | 2.35:1 | Fails | Lc 46.2 | Large or bold text, headings |
| #5BB4D3 text on black | 8.91:1 | AAA | Lc -55.8 | 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
#DEEDF2
oklch(93.6% 0.017 219.7)
-
Step 200
200
#C2DFE9
oklch(88.6% 0.034 220.6)
-
Step 300
300
#96CADD
oklch(80.9% 0.06 222.5)
-
Step 400
400 (this color)
#5BB4D3
oklch(72.7% 0.096 223.4)
-
Step 500
500
#0098BD
oklch(63.1% 0.118 223.1)
-
Step 600
600
#0080A0
oklch(55.7% 0.104 223.4)
-
Step 700
700
#006B87
oklch(49% 0.092 224)
-
Step 800
800
#00586F
oklch(42.7% 0.08 223.4)
-
Step 900
900
#00495D
oklch(37.7% 0.071 223.8)
-
Step 950
950
#002B38
oklch(26.8% 0.05 223.6)
#5BB4D3 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) | #A2B0D5 | 0.077 |
| Deuteranopia (no green cones) | #91A3D3 | 0.069 |
| Tritanopia (no blue cones) | #00BEBE | 0.061 |
| Achromatopsia (no color) | #A9A9A9 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BB4D3
#5BB4D3
oklch(72.7% 0.096 223.4)
- #DA9375
#DA9375
oklch(72.7% 0.096 43.7)
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 #5BB4D3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.048
- Greyblue #77A1B5 ΔE 0.059
- Vivid Sky Blue #4CC9F0 ΔE 0.061
- Bluegrey #85A3B2 ΔE 0.064
- Deep Sky Blue #00BFFF ΔE 0.066
- Bluey Grey #89A0B0 ΔE 0.071
- Cool Steel #97A7B3 ΔE 0.073
- Light Sea Green #20B2AA ΔE 0.074
Use #5BB4D3 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.