#009556
Closest named color: Viridian (#1E9167). oklch(58.9% 0.144 155.5), rgb(0, 149, 86).
Aa
Black text reads best on this color (5.43:1).
About this color
#009556 is a medium-dark, vivid green. In OKLCH its lightness is 59%, its chroma 0.144 and its hue 156°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Viridian (#1E9167), ΔE 0.031 away. Black text reads best on it, at 5.43:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.144) |
| Temperature | in between |
| Nearest name | Viridian (#1E9167) |
| Black text | 5.43:1 |
| White text | 3.86:1 |
Values
| HEX | #009556 |
| RGB | rgb(0, 149, 86) |
| HSL | hsl(155, 100%, 29%) |
| OKLCH | oklch(58.9% 0.144 155.5) |
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 #009556 | 3.86:1 | AA large text | Lc -71.0 | Content text, not long reading |
| Black text on #009556 | 5.43:1 | AA | Lc 38.6 | Non-text elements, placeholder text |
| #009556 text on white | 3.86:1 | AA large text | Lc 65.5 | Content text, not long reading |
| #009556 text on black | 5.43:1 | 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
#C7E1CF
oklch(88.6% 0.037 155.4)
-
Step 300
300
#A0CEAF
oklch(81% 0.065 155.2)
-
Step 400
400
#67B485
oklch(70.7% 0.104 155.8)
-
Step 500
500
#34A166
oklch(63.2% 0.133 155.5)
-
Step 600
600 (this color)
#009556
oklch(58.9% 0.144 155.5)
-
Step 700
700
#007442
oklch(49.1% 0.12 155.6)
-
Step 800
800
#005F35
oklch(42.7% 0.104 155.6)
-
Step 900
900
#0B4F2D
oklch(37.8% 0.087 155.4)
-
Step 950
950
#0B2E1B
oklch(27% 0.054 156)
#009556 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) | #948852 | 0.128 |
| Deuteranopia (no green cones) | #867D5A | 0.127 |
| Tritanopia (no blue cones) | #009385 | 0.071 |
| Achromatopsia (no color) | #828282 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #009556
#009556
oklch(58.9% 0.144 155.5)
- #B0579E
#B0579E
oklch(58.9% 0.145 335.5)
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 #009556, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Viridian #1E9167 ΔE 0.031
- Sea Green #2E8B57 ΔE 0.032
- Kelley Green #009337 ΔE 0.035
- Light Forest Green #4F9153 ΔE 0.038
- Fern Green #548D44 ΔE 0.044
- Irish Green #019529 ΔE 0.048
- Ocean Green #3D9973 ΔE 0.051
- Forest Green #228B22 ΔE 0.052
Use #009556 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.