#5BB0D3
Closest named color: Turquoise Blue (#06B1C4). oklch(71.8% 0.097 227.3), rgb(91, 176, 211).
Aa
Black text reads best on this color (8.59:1).
About this color
#5BB0D3 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 72%, its chroma 0.097 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.047 away. Black text reads best on it, at 8.59:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 8.59:1 |
| White text | 2.44:1 |
Values
| HEX | #5BB0D3 |
| RGB | rgb(91, 176, 211) |
| HSL | hsl(197, 58%, 59%) |
| OKLCH | oklch(71.8% 0.097 227.3) |
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 #5BB0D3 | 2.44:1 | Fails | Lc -52.9 | Large or bold text, headings |
| Black text on #5BB0D3 | 8.59:1 | AAA | Lc 56.1 | Large or bold text, headings |
| #5BB0D3 text on white | 2.44:1 | Fails | Lc 47.9 | Large or bold text, headings |
| #5BB0D3 text on black | 8.59:1 | AAA | Lc -54.1 | 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
#F0F7FA
oklch(97.2% 0.008 225.1)
-
Step 100
100
#DEECF3
oklch(93.5% 0.018 229)
-
Step 200
200
#C3DEEB
oklch(88.5% 0.034 228.4)
-
Step 300
300
#98C9DF
oklch(80.9% 0.06 227.3)
-
Step 400
400 (this color)
#5BB0D3
oklch(71.8% 0.097 227.3)
-
Step 500
500
#0097C3
oklch(63.1% 0.123 227.5)
-
Step 600
600
#007FA4
oklch(55.6% 0.108 227.1)
-
Step 700
700
#006B8A
oklch(49.2% 0.095 226.5)
-
Step 800
800
#005772
oklch(42.6% 0.083 227.6)
-
Step 900
900
#004960
oklch(37.8% 0.073 227.3)
-
Step 950
950
#012B3A
oklch(27% 0.052 227.6)
#5BB0D3 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) | #9DADD5 | 0.071 |
| Deuteranopia (no green cones) | #8CA0D3 | 0.063 |
| Tritanopia (no blue cones) | #00BABB | 0.065 |
| Achromatopsia (no color) | #A6A6A6 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BB0D3
#5BB0D3
oklch(71.8% 0.097 227.3)
- #D6916F
#D6916F
oklch(71.8% 0.096 47)
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 #5BB0D3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.047
- Greyblue #77A1B5 ΔE 0.053
- Bluegrey #85A3B2 ΔE 0.060
- Bluey Grey #89A0B0 ΔE 0.067
- Deep Sky Blue #00BFFF ΔE 0.069
- Vivid Sky Blue #4CC9F0 ΔE 0.070
- Cool Steel #97A7B3 ΔE 0.072
- Light Sea Green #20B2AA ΔE 0.076
Use #5BB0D3 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.