#1BB0DF
Closest named color: Turquoise Blue (#06B1C4). oklch(70.7% 0.131 226.5), rgb(27, 176, 223).
Aa
Black text reads best on this color (8.32:1).
About this color
#1BB0DF is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 71%, its chroma 0.131 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.043 away. Black text reads best on it, at 8.32:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.131) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 8.32:1 |
| White text | 2.52:1 |
Values
| HEX | #1BB0DF |
| RGB | rgb(27, 176, 223) |
| HSL | hsl(194, 78%, 49%) |
| OKLCH | oklch(70.7% 0.131 226.5) |
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 #1BB0DF | 2.52:1 | Fails | Lc -54.0 | Large or bold text, headings |
| Black text on #1BB0DF | 8.32:1 | AAA | Lc 55.1 | Large or bold text, headings |
| #1BB0DF text on white | 2.52:1 | Fails | Lc 48.9 | Large or bold text, headings |
| #1BB0DF text on black | 8.32:1 | AAA | Lc -53.0 | 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
#EEF7FB
oklch(97.1% 0.011 226)
-
Step 100
100
#DAEEF6
oklch(93.7% 0.024 223.7)
-
Step 200
200
#BAE0F1
oklch(88.5% 0.046 226.8)
-
Step 300
300
#86CCEA
oklch(81% 0.082 226.9)
-
Step 400
400 (this color)
#1BB0DF
oklch(70.7% 0.131 226.5)
-
Step 500
500
#0097C2
oklch(63.1% 0.122 226.9)
-
Step 600
600
#007FA3
oklch(55.6% 0.107 226.4)
-
Step 700
700
#006B8A
oklch(49.2% 0.095 226.5)
-
Step 800
800
#005771
oklch(42.6% 0.082 226.6)
-
Step 900
900
#00495F
oklch(37.8% 0.072 226.2)
-
Step 950
950
#002B3A
oklch(27% 0.052 227.2)
#1BB0DF 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) | #97ADE1 | 0.097 |
| Deuteranopia (no green cones) | #7E9BDE | 0.084 |
| Tritanopia (no blue cones) | #00BEC0 | 0.070 |
| Achromatopsia (no color) | #A3A3A3 | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1BB0DF
#1BB0DF
oklch(70.7% 0.131 226.5)
- #E28555
#E28555
oklch(70.7% 0.131 47.1)
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 #1BB0DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.043
- Deep Sky Blue #00BFFF ΔE 0.055
- Vivid Sky Blue #4CC9F0 ΔE 0.077
- Greyblue #77A1B5 ΔE 0.080
- Bright Sky Blue #02CCFE ΔE 0.080
- Light Sea Green #20B2AA ΔE 0.082
- Chefchaouen Blue #4895EF ΔE 0.084
- Topaz #13BBAF ΔE 0.087
Use #1BB0DF 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.