#019558
Closest named color: Viridian (#1E9167). oklch(58.9% 0.142 156.2), rgb(1, 149, 88).
Aa
Black text reads best on this color (5.44:1).
About this color
#019558 is a medium-dark, vivid green. In OKLCH its lightness is 59%, its chroma 0.142 and its hue 156°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Viridian (#1E9167), ΔE 0.029 away. Black text reads best on it, at 5.44:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.142) |
| Temperature | in between |
| Nearest name | Viridian (#1E9167) |
| Black text | 5.44:1 |
| White text | 3.85:1 |
Values
| HEX | #019558 |
| RGB | rgb(1, 149, 88) |
| HSL | hsl(155, 99%, 29%) |
| OKLCH | oklch(58.9% 0.142 156.2) |
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 #019558 | 3.85:1 | AA large text | Lc -70.9 | Content text, not long reading |
| Black text on #019558 | 5.44:1 | AA | Lc 38.7 | Non-text elements, placeholder text |
| #019558 text on white | 3.85:1 | AA large text | Lc 65.4 | Content text, not long reading |
| #019558 text on black | 5.44:1 | AA | Lc -36.2 | 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 600.
-
Step 50
50
#F1F7F3
oklch(97.1% 0.008 157.1)
-
Step 100
100
#E1EEE5
oklch(93.7% 0.018 155.8)
-
Step 200
200
#C7E1D0
oklch(88.6% 0.036 156.9)
-
Step 300
300
#A0CEB0
oklch(81% 0.064 156.1)
-
Step 400
400
#67B486
oklch(70.7% 0.103 156.3)
-
Step 500
500
#34A067
oklch(63% 0.13 156.1)
-
Step 600
600 (this color)
#019558
oklch(58.9% 0.142 156.2)
-
Step 700
700
#007443
oklch(49.1% 0.119 156.1)
-
Step 800
800
#005F36
oklch(42.7% 0.103 156.1)
-
Step 900
900
#0B4F2E
oklch(37.8% 0.086 156.1)
-
Step 950
950
#0B2E1B
oklch(27% 0.054 156)
#019558 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) | #948854 | 0.128 |
| Deuteranopia (no green cones) | #867D5C | 0.126 |
| Tritanopia (no blue cones) | #009486 | 0.068 |
| Achromatopsia (no color) | #828282 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #019558
#019558
oklch(58.9% 0.142 156.2)
- #B0589C
#B0589C
oklch(58.9% 0.142 336.6)
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 #019558, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Viridian #1E9167 ΔE 0.029
- Sea Green #2E8B57 ΔE 0.031
- Light Forest Green #4F9153 ΔE 0.038
- Kelley Green #009337 ΔE 0.038
- Fern Green #548D44 ΔE 0.044
- Ocean Green #3D9973 ΔE 0.048
- Irish Green #019529 ΔE 0.051
- Forest Green #228B22 ΔE 0.055
Use #019558 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.