#019FA7
Closest named color: Sea (#3C9992). oklch(63.9% 0.109 201.1), rgb(1, 159, 167).
Aa
Black text reads best on this color (6.51:1).
About this color
#019FA7 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 64%, its chroma 0.109 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Sea (#3C9992), ΔE 0.033 away. Black text reads best on it, at 6.51:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Sea (#3C9992) |
| Black text | 6.51:1 |
| White text | 3.22:1 |
Values
| HEX | #019FA7 |
| RGB | rgb(1, 159, 167) |
| HSL | hsl(183, 99%, 33%) |
| OKLCH | oklch(63.9% 0.109 201.1) |
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 #019FA7 | 3.22:1 | AA large text | Lc -64.2 | Content text, not long reading |
| Black text on #019FA7 | 6.51:1 | AA | Lc 45.2 | Large or bold text, headings |
| #019FA7 text on white | 3.22:1 | AA large text | Lc 58.8 | Large or bold text, headings |
| #019FA7 text on black | 6.51:1 | AA | Lc -42.9 | 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
#F0F7F7
oklch(97.1% 0.007 197)
-
Step 100
100
#DFEDEE
oklch(93.6% 0.015 202)
-
Step 200
200
#C4DFE1
oklch(88.4% 0.029 202.1)
-
Step 300
300
#99CBCF
oklch(80.8% 0.052 202.3)
-
Step 400
400
#58B1B6
oklch(70.8% 0.085 200.3)
-
Step 500
500 (this color)
#019FA7
oklch(63.9% 0.109 201.1)
-
Step 600
600
#00838A
oklch(55.5% 0.094 201.4)
-
Step 700
700
#006E74
oklch(49% 0.083 201.4)
-
Step 800
800
#005A5F
oklch(42.5% 0.072 201.4)
-
Step 900
900
#004B50
oklch(37.6% 0.064 202.5)
-
Step 950
950
#012D2F
oklch(27% 0.045 199.5)
#019FA7 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) | #9297A8 | 0.110 |
| Deuteranopia (no green cones) | #7E89A8 | 0.102 |
| Tritanopia (no blue cones) | #00A6A1 | 0.025 |
| Achromatopsia (no color) | #8F8F8F | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #019FA7
#019FA7
oklch(63.9% 0.109 201.1)
- #C5706F
#C5706F
oklch(63.9% 0.108 21.2)
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 #019FA7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea #3C9992 ΔE 0.033
- Persian Green #2A9D8F ΔE 0.035
- Blue Green #0F9B8E ΔE 0.037
- Teal Green #0A9396 ΔE 0.038
- Cadet Blue #5F9EA0 ΔE 0.048
- Dull Teal #5F9E8F ΔE 0.055
- Grey Teal #5E9B8A ΔE 0.057
- Light Sea Green #20B2AA ΔE 0.057
Use #019FA7 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.