#019FAE
Closest named color: Sea (#3C9992). oklch(64.2% 0.11 206.6), rgb(1, 159, 174).
Aa
Black text reads best on this color (6.57:1).
About this color
#019FAE is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 64%, its chroma 0.110 and its hue 207°. Its hue sits on the cool side of the wheel. The nearest named color is Sea (#3C9992), ΔE 0.041 away. Black text reads best on it, at 6.57:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Sea (#3C9992) |
| Black text | 6.57:1 |
| White text | 3.19:1 |
Values
| HEX | #019FAE |
| RGB | rgb(1, 159, 174) |
| HSL | hsl(185, 99%, 34%) |
| OKLCH | oklch(64.2% 0.11 206.6) |
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 #019FAE | 3.19:1 | AA large text | Lc -63.9 | Content text, not long reading |
| Black text on #019FAE | 6.57:1 | AA | Lc 45.5 | Large or bold text, headings |
| #019FAE text on white | 3.19:1 | AA large text | Lc 58.5 | Large or bold text, headings |
| #019FAE text on black | 6.57:1 | AA | Lc -43.2 | 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
#F0F7F8
oklch(97.1% 0.008 207.1)
-
Step 100
100
#DFEDEF
oklch(93.6% 0.015 207.1)
-
Step 200
200
#C3DFE3
oklch(88.4% 0.03 207.1)
-
Step 300
300
#98CBD2
oklch(80.9% 0.054 206.7)
-
Step 400
400
#58B0BB
oklch(70.7% 0.086 206.2)
-
Step 500
500 (this color)
#019FAE
oklch(64.2% 0.11 206.6)
-
Step 600
600
#00838F
oklch(55.7% 0.095 206.1)
-
Step 700
700
#006E79
oklch(49.2% 0.084 206.9)
-
Step 800
800
#005A63
oklch(42.7% 0.073 206.6)
-
Step 900
900
#004B53
oklch(37.7% 0.065 207)
-
Step 950
950
#012C31
oklch(26.8% 0.045 206.7)
#019FAE 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) | #9098AF | 0.107 |
| Deuteranopia (no green cones) | #7C8AAE | 0.097 |
| Tritanopia (no blue cones) | #00A7A3 | 0.033 |
| Achromatopsia (no color) | #909090 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #019FAE
#019FAE
oklch(64.2% 0.11 206.6)
- #C77168
#C77168
oklch(64.2% 0.11 26.9)
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 #019FAE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea #3C9992 ΔE 0.041
- Teal Green #0A9396 ΔE 0.044
- Persian Green #2A9D8F ΔE 0.045
- Blue Green #0F9B8E ΔE 0.047
- Cadet Blue #5F9EA0 ΔE 0.049
- Turquoise Blue #06B1C4 ΔE 0.055
- Light Sea Green #20B2AA ΔE 0.060
- Dull Teal #5F9E8F ΔE 0.061
Use #019FAE 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.