#11BFCD
Closest named color: Turquoise Blue (#06B1C4). oklch(73.5% 0.123 204.3), rgb(17, 191, 205).
Aa
Black text reads best on this color (9.35:1).
About this color
#11BFCD is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 73%, its chroma 0.123 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.040 away. Black text reads best on it, at 9.35:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 9.35:1 |
| White text | 2.24:1 |
Values
| HEX | #11BFCD |
| RGB | rgb(17, 191, 205) |
| HSL | hsl(184, 85%, 44%) |
| OKLCH | oklch(73.5% 0.123 204.3) |
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 #11BFCD | 2.24:1 | Fails | Lc -48.4 | Large or bold text, headings |
| Black text on #11BFCD | 9.35:1 | AAA | Lc 60.3 | Content text, not long reading |
| #11BFCD text on white | 2.24:1 | Fails | Lc 43.6 | Non-text elements, placeholder text |
| #11BFCD text on black | 9.35:1 | AAA | Lc -58.5 | 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
#EEF8F9
oklch(97.2% 0.011 204.1)
-
Step 100
100
#DAEFF1
oklch(93.7% 0.022 203.7)
-
Step 200
200
#B9E2E6
oklch(88.5% 0.043 203.7)
-
Step 300
300
#82D0D8
oklch(81% 0.078 204.1)
-
Step 400
400 (this color)
#11BFCD
oklch(73.5% 0.123 204.3)
-
Step 500
500
#009CA8
oklch(63.2% 0.108 204.4)
-
Step 600
600
#00838D
oklch(55.6% 0.095 204.2)
-
Step 700
700
#006E77
oklch(49.1% 0.084 204.7)
-
Step 800
800
#005A61
oklch(42.6% 0.073 204)
-
Step 900
900
#004B51
oklch(37.6% 0.064 204)
-
Step 950
950
#002D31
oklch(27.1% 0.046 204.1)
#11BFCD 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) | #AEB7CE | 0.122 |
| Deuteranopia (no green cones) | #97A6CD | 0.111 |
| Tritanopia (no blue cones) | #00C8C3 | 0.034 |
| Achromatopsia (no color) | #ADADAD | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #11BFCD
#11BFCD
oklch(73.5% 0.123 204.3)
- #ED8982
#ED8982
oklch(73.5% 0.123 24.7)
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 #11BFCD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.040
- Dark Turquoise #00CED1 ΔE 0.042
- Topaz #13BBAF ΔE 0.043
- Light Sea Green #20B2AA ΔE 0.055
- Medium Turquoise #48D1CC ΔE 0.059
- Vivid Sky Blue #4CC9F0 ΔE 0.062
- Aqua Blue #02D8E9 ΔE 0.072
- Bright Sky Blue #02CCFE ΔE 0.072
Use #11BFCD 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.