#019573
Closest named color: Viridian (#1E9167). oklch(59.6% 0.119 169.3), rgb(1, 149, 115).
Aa
Black text reads best on this color (5.54:1).
About this color
#019573 is a medium-dark, moderately saturated green. In OKLCH its lightness is 60%, its chroma 0.119 and its hue 169°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Viridian (#1E9167), ΔE 0.017 away. Black text reads best on it, at 5.54:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.119) |
| Temperature | in between |
| Nearest name | Viridian (#1E9167) |
| Black text | 5.54:1 |
| White text | 3.78:1 |
Values
| HEX | #019573 |
| RGB | rgb(1, 149, 115) |
| HSL | hsl(166, 99%, 29%) |
| OKLCH | oklch(59.6% 0.119 169.3) |
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 #019573 | 3.78:1 | AA large text | Lc -70.3 | Content text, not long reading |
| Black text on #019573 | 5.54:1 | AA | Lc 39.3 | Non-text elements, placeholder text |
| #019573 text on white | 3.78:1 | AA large text | Lc 64.8 | Content text, not long reading |
| #019573 text on black | 5.54:1 | AA | Lc -36.9 | 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
#F1F7F4
oklch(97.1% 0.007 164.9)
-
Step 100
100
#E0EEE8
oklch(93.7% 0.017 168.5)
-
Step 200
200
#C5E0D5
oklch(88.4% 0.032 169.1)
-
Step 300
300
#9CCDBA
oklch(80.8% 0.058 169.1)
-
Step 400
400
#60B397
oklch(70.6% 0.092 169.6)
-
Step 500
500 (this color)
#019573
oklch(59.6% 0.119 169.3)
-
Step 600
600
#008868
oklch(55.7% 0.112 168.9)
-
Step 700
700
#007257
oklch(49.1% 0.098 169.1)
-
Step 800
800
#005E47
oklch(42.8% 0.086 168.9)
-
Step 900
900
#004E3B
oklch(37.7% 0.075 169.6)
-
Step 950
950
#062E22
oklch(27% 0.049 168.5)
#019573 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) | #918A71 | 0.121 |
| Deuteranopia (no green cones) | #817E75 | 0.116 |
| Tritanopia (no blue cones) | #00968B | 0.036 |
| Achromatopsia (no color) | #838383 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #019573
#019573
oklch(59.6% 0.119 169.3)
- #B25F8A
#B25F8A
oklch(59.5% 0.119 349)
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 #019573, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Viridian #1E9167 ΔE 0.017
- Ocean Green #3D9973 ΔE 0.028
- Sea Green #2E8B57 ΔE 0.040
- Blue Green #0F9B8E ΔE 0.040
- Persian Green #2A9D8F ΔE 0.047
- Light Forest Green #4F9153 ΔE 0.049
- Dusty Teal #4C9085 ΔE 0.052
- Sea #3C9992 ΔE 0.055
Use #019573 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.