#1BC19F
Closest named color: Green Blue (#01C08D). oklch(72.5% 0.134 173.5), rgb(27, 193, 159).
Aa
Black text reads best on this color (9.17:1).
About this color
#1BC19F is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 73%, its chroma 0.134 and its hue 174°. Its hue sits on the cool side of the wheel. The nearest named color is Green Blue (#01C08D), ΔE 0.026 away. Black text reads best on it, at 9.17:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.134) |
| Temperature | cool |
| Nearest name | Green Blue (#01C08D) |
| Black text | 9.17:1 |
| White text | 2.28:1 |
Values
| HEX | #1BC19F |
| RGB | rgb(27, 193, 159) |
| HSL | hsl(168, 75%, 43%) |
| OKLCH | oklch(72.5% 0.134 173.5) |
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 #1BC19F | 2.28:1 | Fails | Lc -49.4 | Large or bold text, headings |
| Black text on #1BC19F | 9.17:1 | AAA | Lc 59.4 | Large or bold text, headings |
| #1BC19F text on white | 2.28:1 | Fails | Lc 44.6 | Non-text elements, placeholder text |
| #1BC19F text on black | 9.17:1 | AAA | Lc -57.5 | 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
#EEF8F5
oklch(97.1% 0.011 176.3)
-
Step 100
100
#DAEFE8
oklch(93.5% 0.024 173.8)
-
Step 200
200
#BBE4D6
oklch(88.6% 0.047 172.5)
-
Step 300
300
#85D3BC
oklch(81% 0.084 173.4)
-
Step 400
400 (this color)
#1BC19F
oklch(72.5% 0.134 173.5)
-
Step 500
500
#00A183
oklch(63.2% 0.121 173.2)
-
Step 600
600
#00876E
oklch(55.6% 0.106 173.6)
-
Step 700
700
#00725C
oklch(49.2% 0.094 173.1)
-
Step 800
800
#005D4B
oklch(42.7% 0.081 173.5)
-
Step 900
900
#004E3E
oklch(37.8% 0.073 172.9)
-
Step 950
950
#002E24
oklch(26.9% 0.051 173.7)
#1BC19F 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) | #BAB49D | 0.139 |
| Deuteranopia (no green cones) | #A7A5A1 | 0.134 |
| Tritanopia (no blue cones) | #00C3B7 | 0.033 |
| Achromatopsia (no color) | #ABABAB | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1BC19F
#1BC19F
oklch(72.5% 0.134 173.5)
- #E681AD
#E681AD
oklch(72.6% 0.134 353.4)
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 #1BC19F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Green Blue #01C08D ΔE 0.026
- Greenblue #23C48B ΔE 0.032
- Topaz #13BBAF ΔE 0.033
- Greeny Blue #42B395 ΔE 0.038
- Light Sea Green #20B2AA ΔE 0.052
- Dark Seafoam #1FB57A ΔE 0.053
- Green Teal #0CB577 ΔE 0.058
- Medium Aquamarine #66CDAA ΔE 0.058
Use #1BC19F 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.