#1BB9BA
Closest named color: Topaz (#13BBAF). oklch(71.4% 0.118 195.5), rgb(27, 185, 186).
Aa
Black text reads best on this color (8.69:1).
About this color
#1BB9BA is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 71%, its chroma 0.118 and its hue 196°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.019 away. Black text reads best on it, at 8.69:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 8.69:1 |
| White text | 2.41:1 |
Values
| HEX | #1BB9BA |
| RGB | rgb(27, 185, 186) |
| HSL | hsl(180, 75%, 42%) |
| OKLCH | oklch(71.4% 0.118 195.5) |
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 #1BB9BA | 2.41:1 | Fails | Lc -52.0 | Large or bold text, headings |
| Black text on #1BB9BA | 8.69:1 | AAA | Lc 57.0 | Large or bold text, headings |
| #1BB9BA text on white | 2.41:1 | Fails | Lc 47.0 | Large or bold text, headings |
| #1BB9BA text on black | 8.69:1 | AAA | Lc -55.0 | 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
#EEF8F7
oklch(97.1% 0.011 189.8)
-
Step 100
100
#DAEFEE
oklch(93.6% 0.022 193.3)
-
Step 200
200
#BBE2E2
oklch(88.5% 0.041 196.4)
-
Step 300
300
#86D0D0
oklch(80.9% 0.074 195.8)
-
Step 400
400 (this color)
#1BB9BA
oklch(71.4% 0.118 195.5)
-
Step 500
500
#009D9E
oklch(63.1% 0.108 195.6)
-
Step 600
600
#008485
oklch(55.6% 0.095 195.7)
-
Step 700
700
#006F70
oklch(49.1% 0.084 195.9)
-
Step 800
800
#005B5C
oklch(42.7% 0.073 196.1)
-
Step 900
900
#004C4C
oklch(37.7% 0.064 194.8)
-
Step 950
950
#002D2E
oklch(27% 0.046 197.1)
#1BB9BA 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) | #ACB0BA | 0.122 |
| Deuteranopia (no green cones) | #97A0BB | 0.115 |
| Tritanopia (no blue cones) | #00BFB9 | 0.018 |
| Achromatopsia (no color) | #A7A7A7 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1BB9BA
#1BB9BA
oklch(71.4% 0.118 195.5)
- #E2838A
#E2838A
oklch(71.4% 0.117 15.7)
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 #1BB9BA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.019
- Light Sea Green #20B2AA ΔE 0.026
- Turquoise Blue #06B1C4 ΔE 0.032
- Greeny Blue #42B395 ΔE 0.051
- Dark Turquoise #00CED1 ΔE 0.060
- Medium Turquoise #48D1CC ΔE 0.074
- Green Blue #01C08D ΔE 0.075
- Cadet Blue #5F9EA0 ΔE 0.077
Use #1BB9BA 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.