#19BBB0
Closest named color: Topaz (#13BBAF). oklch(71.5% 0.121 187.2), rgb(25, 187, 176).
Aa
Black text reads best on this color (8.77:1).
About this color
#19BBB0 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 72%, its chroma 0.121 and its hue 187°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.002 away. Black text reads best on it, at 8.77:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 8.77:1 |
| White text | 2.39:1 |
Values
| HEX | #19BBB0 |
| RGB | rgb(25, 187, 176) |
| HSL | hsl(176, 76%, 42%) |
| OKLCH | oklch(71.5% 0.121 187.2) |
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 #19BBB0 | 2.39:1 | Fails | Lc -51.5 | Large or bold text, headings |
| Black text on #19BBB0 | 8.77:1 | AAA | Lc 57.4 | Large or bold text, headings |
| #19BBB0 text on white | 2.39:1 | Fails | Lc 46.6 | Large or bold text, headings |
| #19BBB0 text on black | 8.77:1 | AAA | Lc -55.4 | 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
#EEF8F6
oklch(97.1% 0.011 182.9)
-
Step 100
100
#DAEFEC
oklch(93.6% 0.022 186.5)
-
Step 200
200
#BBE3DE
oklch(88.6% 0.042 187.1)
-
Step 300
300
#86D1C9
oklch(80.9% 0.076 187.3)
-
Step 400
400 (this color)
#19BBB0
oklch(71.5% 0.121 187.2)
-
Step 500
500
#009E95
oklch(63% 0.11 187.7)
-
Step 600
600
#00857D
oklch(55.5% 0.097 187.4)
-
Step 700
700
#007069
oklch(49.1% 0.086 187.3)
-
Step 800
800
#005C56
oklch(42.8% 0.075 187.1)
-
Step 900
900
#004D48
oklch(37.8% 0.066 187.3)
-
Step 950
950
#002E2A
oklch(27.1% 0.048 185.8)
#19BBB0 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) | #B0B0B0 | 0.128 |
| Deuteranopia (no green cones) | #9CA1B1 | 0.121 |
| Tritanopia (no blue cones) | #00C0B7 | 0.015 |
| Achromatopsia (no color) | #A7A7A7 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #19BBB0
#19BBB0
oklch(71.5% 0.121 187.2)
- #E38196
#E38196
oklch(71.5% 0.122 6.9)
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 #19BBB0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.002
- Light Sea Green #20B2AA ΔE 0.025
- Greeny Blue #42B395 ΔE 0.038
- Turquoise Blue #06B1C4 ΔE 0.048
- Green Blue #01C08D ΔE 0.058
- Dark Turquoise #00CED1 ΔE 0.061
- Greenblue #23C48B ΔE 0.066
- Medium Turquoise #48D1CC ΔE 0.072
Use #19BBB0 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.