#009ECF
Closest named color: Turquoise Blue (#06B1C4). oklch(65.4% 0.129 229.2), rgb(0, 158, 207).
Aa
Black text reads best on this color (6.79:1).
About this color
#009ECF is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 65%, its chroma 0.129 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.062 away. Black text reads best on it, at 6.79:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 6.79:1 |
| White text | 3.09:1 |
Values
| HEX | #009ECF |
| RGB | rgb(0, 158, 207) |
| HSL | hsl(194, 100%, 41%) |
| OKLCH | oklch(65.4% 0.129 229.2) |
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 #009ECF | 3.09:1 | AA large text | Lc -62.6 | Content text, not long reading |
| Black text on #009ECF | 6.79:1 | AA | Lc 46.9 | Large or bold text, headings |
| #009ECF text on white | 3.09:1 | AA large text | Lc 57.2 | Large or bold text, headings |
| #009ECF text on black | 6.79:1 | AA | Lc -44.6 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F0F7FA
oklch(97.2% 0.008 225.1)
-
Step 100
100
#DEEDF4
oklch(93.7% 0.019 227.3)
-
Step 200
200
#C2DEEC
oklch(88.4% 0.035 229.3)
-
Step 300
300
#96C9E2
oklch(80.9% 0.064 229.6)
-
Step 400
400
#55ACD3
oklch(70.6% 0.101 229.8)
-
Step 500
500 (this color)
#009ECF
oklch(65.4% 0.129 229.2)
-
Step 600
600
#007EA6
oklch(55.5% 0.11 229.3)
-
Step 700
700
#006A8C
oklch(49% 0.097 229.1)
-
Step 800
800
#005774
oklch(42.7% 0.085 229.4)
-
Step 900
900
#004861
oklch(37.6% 0.075 229.8)
-
Step 950
950
#002B3B
oklch(27% 0.053 228.8)
#009ECF 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) | #849CD1 | 0.089 |
| Deuteranopia (no green cones) | #6D8BCE | 0.077 |
| Tritanopia (no blue cones) | #00ACAF | 0.072 |
| Achromatopsia (no color) | #929292 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #009ECF
#009ECF
oklch(65.4% 0.129 229.2)
- #CF7643
#CF7643
oklch(65.5% 0.13 48.9)
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 #009ECF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.062
- Dark Sky Blue #448EE4 ΔE 0.064
- Blue NCS #118AB2 ΔE 0.064
- Water Blue #0E87CC ΔE 0.065
- Chefchaouen Blue #4895EF ΔE 0.066
- Faded Blue #658CBB ΔE 0.068
- Cool Blue #4984B8 ΔE 0.074
- Dusty Blue #5A86AD ΔE 0.078
Use #009ECF 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.