#19A3BB
Closest named color: Turquoise Blue (#06B1C4). oklch(65.9% 0.111 213.6), rgb(25, 163, 187).
Aa
Black text reads best on this color (6.99:1).
About this color
#19A3BB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 66%, its chroma 0.111 and its hue 214°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.039 away. Black text reads best on it, at 6.99:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 6.99:1 |
| White text | 3.00:1 |
Values
| HEX | #19A3BB |
| RGB | rgb(25, 163, 187) |
| HSL | hsl(189, 76%, 42%) |
| OKLCH | oklch(65.9% 0.111 213.6) |
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 #19A3BB | 3.00:1 | AA large text | Lc -61.5 | Content text, not long reading |
| Black text on #19A3BB | 6.99:1 | AA | Lc 47.9 | Large or bold text, headings |
| #19A3BB text on white | 3.00:1 | AA large text | Lc 56.2 | Large or bold text, headings |
| #19A3BB text on black | 6.99:1 | AA | Lc -45.6 | 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 500.
-
Step 50
50
#F0F7F8
oklch(97.1% 0.008 207.1)
-
Step 100
100
#DFEDF0
oklch(93.7% 0.015 212)
-
Step 200
200
#C4DFE5
oklch(88.6% 0.03 212.6)
-
Step 300
300
#98CAD6
oklch(80.8% 0.055 214.1)
-
Step 400
400
#59AFC1
oklch(70.7% 0.087 213.1)
-
Step 500
500 (this color)
#19A3BB
oklch(65.9% 0.111 213.6)
-
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
#022C34
oklch(27% 0.046 213.8)
#19A3BB 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) | #919DBC | 0.100 |
| Deuteranopia (no green cones) | #7D8FBB | 0.090 |
| Tritanopia (no blue cones) | #00ACAA | 0.043 |
| Achromatopsia (no color) | #959595 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #19A3BB
#19A3BB
oklch(65.9% 0.111 213.6)
- #CD7764
#CD7764
oklch(65.9% 0.112 33.4)
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 #19A3BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.039
- Cadet Blue #5F9EA0 ΔE 0.052
- Light Sea Green #20B2AA ΔE 0.058
- Sea #3C9992 ΔE 0.059
- Persian Green #2A9D8F ΔE 0.064
- Teal Green #0A9396 ΔE 0.065
- Greyblue #77A1B5 ΔE 0.066
- Blue Green #0F9B8E ΔE 0.067
Use #19A3BB 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.