#1FB19F
Closest named color: Light Sea Green (#20B2AA). oklch(68.5% 0.117 181.9), rgb(31, 177, 159).
Aa
Black text reads best on this color (7.84:1).
About this color
#1FB19F is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 68%, its chroma 0.117 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sea Green (#20B2AA), ΔE 0.016 away. Black text reads best on it, at 7.84:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Light Sea Green (#20B2AA) |
| Black text | 7.84:1 |
| White text | 2.67:1 |
Values
| HEX | #1FB19F |
| RGB | rgb(31, 177, 159) |
| HSL | hsl(173, 70%, 41%) |
| OKLCH | oklch(68.5% 0.117 181.9) |
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 #1FB19F | 2.67:1 | Fails | Lc -56.7 | Large or bold text, headings |
| Black text on #1FB19F | 7.84:1 | AAA | Lc 52.5 | Large or bold text, headings |
| #1FB19F text on white | 2.67:1 | Fails | Lc 51.5 | Large or bold text, headings |
| #1FB19F text on black | 7.84:1 | AAA | Lc -50.4 | 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
#EFF8F6
oklch(97.2% 0.01 181.4)
-
Step 100
100
#DBEFEB
oklch(93.6% 0.022 182.5)
-
Step 200
200
#BDE2DB
oklch(88.4% 0.04 182.6)
-
Step 300
300
#8AD1C4
oklch(81% 0.074 181.6)
-
Step 400
400 (this color)
#1FB19F
oklch(68.5% 0.117 181.9)
-
Step 500
500
#009F8E
oklch(63% 0.113 181.8)
-
Step 600
600
#008677
oklch(55.6% 0.1 181.4)
-
Step 700
700
#007164
oklch(49.2% 0.089 181.2)
-
Step 800
800
#005C52
oklch(42.6% 0.076 182.2)
-
Step 900
900
#004D44
oklch(37.7% 0.068 181.7)
-
Step 950
950
#002E28
oklch(27% 0.049 181.5)
#1FB19F 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) | #A8A69E | 0.124 |
| Deuteranopia (no green cones) | #9698A1 | 0.119 |
| Tritanopia (no blue cones) | #00B5AB | 0.017 |
| Achromatopsia (no color) | #9E9E9E | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1FB19F
#1FB19F
oklch(68.5% 0.117 181.9)
- #D57994
#D57994
oklch(68.4% 0.118 1.9)
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 #1FB19F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sea Green #20B2AA ΔE 0.016
- Greeny Blue #42B395 ΔE 0.022
- Topaz #13BBAF ΔE 0.031
- Bluey Green #2BB179 ΔE 0.054
- Turquoise Blue #06B1C4 ΔE 0.055
- Tea #65AB7C ΔE 0.056
- Dark Seafoam Green #3EAF76 ΔE 0.056
- Persian Green #2A9D8F ΔE 0.057
Use #1FB19F 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.