#019C73
Closest named color: Ocean Green (#3D9973). oklch(61.4% 0.127 166.2), rgb(1, 156, 115).
Aa
Black text reads best on this color (6.00:1).
About this color
#019C73 is a medium-dark, moderately saturated green. In OKLCH its lightness is 61%, its chroma 0.127 and its hue 166°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Ocean Green (#3D9973), ΔE 0.023 away. Black text reads best on it, at 6.00:1.
| Hue family | Greens |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.127) |
| Temperature | in between |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 6.00:1 |
| White text | 3.49:1 |
Values
| HEX | #019C73 |
| RGB | rgb(1, 156, 115) |
| HSL | hsl(164, 99%, 31%) |
| OKLCH | oklch(61.4% 0.127 166.2) |
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 #019C73 | 3.49:1 | AA large text | Lc -67.4 | Content text, not long reading |
| Black text on #019C73 | 6.00:1 | AA | Lc 42.2 | Non-text elements, placeholder text |
| #019C73 text on white | 3.49:1 | AA large text | Lc 61.9 | Content text, not long reading |
| #019C73 text on black | 6.00:1 | AA | Lc -39.8 | 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
#F1F7F4
oklch(97.1% 0.007 164.9)
-
Step 100
100
#DFEEE7
oklch(93.6% 0.018 166.4)
-
Step 200
200
#C5E1D4
oklch(88.6% 0.035 165.9)
-
Step 300
300
#9BCEB8
oklch(80.9% 0.062 166.5)
-
Step 400
400
#5DB493
oklch(70.6% 0.098 166.7)
-
Step 500
500 (this color)
#019C73
oklch(61.4% 0.127 166.2)
-
Step 600
600
#008864
oklch(55.6% 0.115 166.4)
-
Step 700
700
#007253
oklch(49% 0.101 166.2)
-
Step 800
800
#005E44
oklch(42.7% 0.088 166.3)
-
Step 900
900
#004E38
oklch(37.6% 0.078 166.4)
-
Step 950
950
#042E21
oklch(26.9% 0.051 167.4)
#019C73 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) | #989071 | 0.126 |
| Deuteranopia (no green cones) | #888476 | 0.122 |
| Tritanopia (no blue cones) | #009C91 | 0.045 |
| Achromatopsia (no color) | #898989 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #019C73
#019C73
oklch(61.4% 0.127 166.2)
- #BA6294
#BA6294
oklch(61.4% 0.128 346.4)
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 #019C73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.023
- Viridian #1E9167 ΔE 0.032
- Jade #1FA774 ΔE 0.035
- Blue Green #0F9B8E ΔE 0.042
- Persian Green #2A9D8F ΔE 0.045
- Light Forest Green #4F9153 ΔE 0.049
- Sea Green #2E8B57 ΔE 0.053
- Sea #3C9992 ΔE 0.058
Use #019C73 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.