#009173
Closest named color: Viridian (#1E9167). oklch(58.5% 0.114 171.4), rgb(0, 145, 115).
Aa
Black text reads best on this color (5.29:1).
About this color
#009173 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 58%, its chroma 0.114 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Viridian (#1E9167), ΔE 0.018 away. Black text reads best on it, at 5.29:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Viridian (#1E9167) |
| Black text | 5.29:1 |
| White text | 3.96:1 |
Values
| HEX | #009173 |
| RGB | rgb(0, 145, 115) |
| HSL | hsl(168, 100%, 28%) |
| OKLCH | oklch(58.5% 0.114 171.4) |
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 #009173 | 3.96:1 | AA large text | Lc -71.9 | Content text, not long reading |
| Black text on #009173 | 5.29:1 | AA | Lc 37.7 | Non-text elements, placeholder text |
| #009173 text on white | 3.96:1 | AA large text | Lc 66.4 | Content text, not long reading |
| #009173 text on black | 5.29:1 | AA | Lc -35.3 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E1EDE8
oklch(93.6% 0.014 169.2)
-
Step 200
200
#C7E0D7
oklch(88.6% 0.029 172)
-
Step 300
300
#A0CCBC
oklch(80.9% 0.052 170.8)
-
Step 400
400
#68B29A
oklch(70.8% 0.083 171)
-
Step 500
500
#359E81
oklch(63.1% 0.105 171)
-
Step 600
600 (this color)
#009173
oklch(58.5% 0.114 171.4)
-
Step 700
700
#00725A
oklch(49.2% 0.096 171.5)
-
Step 800
800
#005D49
oklch(42.6% 0.083 171.6)
-
Step 900
900
#0C4D3D
oklch(37.7% 0.068 171.6)
-
Step 950
950
#0B2D24
oklch(26.9% 0.043 172.4)
#009173 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) | #8C8672 | 0.117 |
| Deuteranopia (no green cones) | #7D7B75 | 0.113 |
| Tritanopia (no blue cones) | #009288 | 0.032 |
| Achromatopsia (no color) | #808080 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #009173
#009173
oklch(58.5% 0.114 171.4)
- #AE5D83
#AE5D83
oklch(58.4% 0.114 351.7)
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 #009173, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Viridian #1E9167 ΔE 0.018
- Ocean Green #3D9973 ΔE 0.037
- Sea Green #2E8B57 ΔE 0.037
- Blue Green #0F9B8E ΔE 0.044
- Dark Cyan #008B8B ΔE 0.046
- Dusty Teal #4C9085 ΔE 0.050
- Persian Green #2A9D8F ΔE 0.052
- Light Forest Green #4F9153 ΔE 0.053
Use #009173 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.