#009778
Closest named color: Viridian (#1E9167). oklch(60.2% 0.117 171.4), rgb(0, 151, 120).
Aa
Black text reads best on this color (5.69:1).
About this color
#009778 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 60%, its chroma 0.117 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Viridian (#1E9167), ΔE 0.025 away. Black text reads best on it, at 5.69:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Viridian (#1E9167) |
| Black text | 5.69:1 |
| White text | 3.68:1 |
Values
| HEX | #009778 |
| RGB | rgb(0, 151, 120) |
| HSL | hsl(168, 100%, 30%) |
| OKLCH | oklch(60.2% 0.117 171.4) |
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 #009778 | 3.68:1 | AA large text | Lc -69.3 | Content text, not long reading |
| Black text on #009778 | 5.69:1 | AA | Lc 40.3 | Non-text elements, placeholder text |
| #009778 text on white | 3.68:1 | AA large text | Lc 63.8 | Content text, not long reading |
| #009778 text on black | 5.69:1 | AA | Lc -37.9 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E0EEE8
oklch(93.7% 0.017 168.5)
-
Step 200
200
#C5E0D6
oklch(88.4% 0.032 171.3)
-
Step 300
300
#9BCDBC
oklch(80.8% 0.058 171.9)
-
Step 400
400
#5FB399
oklch(70.6% 0.091 171.3)
-
Step 500
500 (this color)
#009778
oklch(60.2% 0.117 171.4)
-
Step 600
600
#00876B
oklch(55.5% 0.108 171.4)
-
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
#004E3D
oklch(37.8% 0.073 171.8)
-
Step 950
950
#052E23
oklch(27% 0.049 170.6)
#009778 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) | #928C76 | 0.120 |
| Deuteranopia (no green cones) | #82807A | 0.116 |
| Tritanopia (no blue cones) | #00988E | 0.033 |
| Achromatopsia (no color) | #858585 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #009778
#009778
oklch(60.2% 0.117 171.4)
- #B56189
#B56189
oklch(60.2% 0.118 351.3)
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 #009778, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Viridian #1E9167 ΔE 0.025
- Ocean Green #3D9973 ΔE 0.025
- Blue Green #0F9B8E ΔE 0.033
- Persian Green #2A9D8F ΔE 0.039
- Sea Green #2E8B57 ΔE 0.048
- Sea #3C9992 ΔE 0.048
- Dusty Teal #4C9085 ΔE 0.049
- Teal Green #0A9396 ΔE 0.052
Use #009778 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.