#09BFDC
Closest named color: Turquoise Blue (#06B1C4). oklch(74% 0.129 213.8), rgb(9, 191, 220).
Aa
Black text reads best on this color (9.49:1).
About this color
#09BFDC is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 74%, its chroma 0.129 and its hue 214°. 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 9.49:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 9.49:1 |
| White text | 2.21:1 |
Values
| HEX | #09BFDC |
| RGB | rgb(9, 191, 220) |
| HSL | hsl(188, 92%, 45%) |
| OKLCH | oklch(74% 0.129 213.8) |
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 #09BFDC | 2.21:1 | Fails | Lc -47.6 | Large or bold text, headings |
| Black text on #09BFDC | 9.49:1 | AAA | Lc 61.1 | Content text, not long reading |
| #09BFDC text on white | 2.21:1 | Fails | Lc 42.9 | Non-text elements, placeholder text |
| #09BFDC text on black | 9.49:1 | AAA | Lc -59.3 | 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
#EEF7FA
oklch(97% 0.01 219.6)
-
Step 100
100
#D9EEF3
oklch(93.5% 0.023 213.6)
-
Step 200
200
#B8E1EB
oklch(88.4% 0.045 214.2)
-
Step 300
300
#81CFE0
oklch(81% 0.08 213.1)
-
Step 400
400 (this color)
#09BFDC
oklch(74% 0.129 213.8)
-
Step 500
500
#009AB2
oklch(63.1% 0.111 213.9)
-
Step 600
600
#008196
oklch(55.5% 0.098 214.4)
-
Step 700
700
#006D7E
oklch(49.1% 0.086 213.3)
-
Step 800
800
#005968
oklch(42.7% 0.075 214.2)
-
Step 900
900
#004A57
oklch(37.6% 0.066 214.5)
-
Step 950
950
#002C34
oklch(26.9% 0.047 213.2)
#09BFDC 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) | #AAB8DE | 0.116 |
| Deuteranopia (no green cones) | #92A7DC | 0.105 |
| Tritanopia (no blue cones) | #00CAC8 | 0.049 |
| Achromatopsia (no color) | #AEAEAE | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #09BFDC
#09BFDC
oklch(74% 0.129 213.8)
- #F18B74
#F18B74
oklch(74.1% 0.129 33.7)
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 #09BFDC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.047
- Vivid Sky Blue #4CC9F0 ΔE 0.047
- Dark Turquoise #00CED1 ΔE 0.050
- Deep Sky Blue #00BFFF ΔE 0.052
- Bright Sky Blue #02CCFE ΔE 0.054
- Topaz #13BBAF ΔE 0.065
- Medium Turquoise #48D1CC ΔE 0.068
- Aqua Blue #02D8E9 ΔE 0.069
Use #09BFDC 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.