#199FBF
Closest named color: Turquoise Blue (#06B1C4). oklch(65.1% 0.114 219.8), rgb(25, 159, 191).
Aa
Black text reads best on this color (6.75:1).
About this color
#199FBF is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 65%, its chroma 0.114 and its hue 220°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.051 away. Black text reads best on it, at 6.75:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 6.75:1 |
| White text | 3.10:1 |
Values
| HEX | #199FBF |
| RGB | rgb(25, 159, 191) |
| HSL | hsl(192, 77%, 42%) |
| OKLCH | oklch(65.1% 0.114 219.8) |
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 #199FBF | 3.10:1 | AA large text | Lc -63.0 | Content text, not long reading |
| Black text on #199FBF | 6.75:1 | AA | Lc 46.5 | Large or bold text, headings |
| #199FBF text on white | 3.10:1 | AA large text | Lc 57.6 | Large or bold text, headings |
| #199FBF text on black | 6.75:1 | AA | Lc -44.2 | 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
#F0F7F9
oklch(97.1% 0.008 216.6)
-
Step 100
100
#DFEDF1
oklch(93.7% 0.016 216.7)
-
Step 200
200
#C4DEE7
oklch(88.4% 0.03 220.6)
-
Step 300
300
#99CADA
oklch(81% 0.056 219.9)
-
Step 400
400
#5AAEC7
oklch(70.8% 0.089 219.7)
-
Step 500
500 (this color)
#199FBF
oklch(65.1% 0.114 219.8)
-
Step 600
600
#00809C
oklch(55.5% 0.101 220.3)
-
Step 700
700
#006C83
oklch(49.1% 0.089 219.3)
-
Step 800
800
#00586C
oklch(42.6% 0.078 220.2)
-
Step 900
900
#004A5A
oklch(37.8% 0.068 218.5)
-
Step 950
950
#032C36
oklch(27.2% 0.047 218.5)
#199FBF 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) | #8B9AC1 | 0.094 |
| Deuteranopia (no green cones) | #778CBF | 0.084 |
| Tritanopia (no blue cones) | #00A9A9 | 0.051 |
| Achromatopsia (no color) | #929292 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #199FBF
#199FBF
oklch(65.1% 0.114 219.8)
- #CA7659
#CA7659
oklch(65.1% 0.114 39.7)
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 #199FBF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.051
- Cadet Blue #5F9EA0 ΔE 0.059
- Blue NCS #118AB2 ΔE 0.061
- Sea #3C9992 ΔE 0.065
- Teal Green #0A9396 ΔE 0.065
- Faded Blue #658CBB ΔE 0.068
- Greyblue #77A1B5 ΔE 0.070
- Persian Green #2A9D8F ΔE 0.072
Use #199FBF 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.