#00A181
Closest named color: Ocean Green (#3D9973). oklch(63.2% 0.122 172), rgb(0, 161, 129).
Aa
Black text reads best on this color (6.41:1).
About this color
#00A181 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 63%, its chroma 0.122 and its hue 172°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean Green (#3D9973), ΔE 0.028 away. Black text reads best on it, at 6.41:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 6.41:1 |
| White text | 3.27:1 |
Values
| HEX | #00A181 |
| RGB | rgb(0, 161, 129) |
| HSL | hsl(168, 100%, 32%) |
| OKLCH | oklch(63.2% 0.122 172) |
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 #00A181 | 3.27:1 | AA large text | Lc -64.9 | Content text, not long reading |
| Black text on #00A181 | 6.41:1 | AA | Lc 44.6 | Non-text elements, placeholder text |
| #00A181 text on white | 3.27:1 | AA large text | Lc 59.4 | Large or bold text, headings |
| #00A181 text on black | 6.41:1 | AA | Lc -42.3 | 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 500.
-
Step 50
50
#F0F7F5
oklch(97% 0.008 177.3)
-
Step 100
100
#DFEEE8
oklch(93.6% 0.018 170.1)
-
Step 200
200
#C4E1D6
oklch(88.5% 0.034 170.7)
-
Step 300
300
#99CEBC
oklch(80.9% 0.061 171.8)
-
Step 400
400
#5AB49A
oklch(70.7% 0.096 172.3)
-
Step 500
500 (this color)
#00A181
oklch(63.2% 0.122 172)
-
Step 600
600
#00876C
oklch(55.5% 0.108 172.1)
-
Step 700
700
#00725A
oklch(49.2% 0.096 171.5)
-
Step 800
800
#005D4A
oklch(42.6% 0.082 172.5)
-
Step 900
900
#004E3D
oklch(37.8% 0.073 171.8)
-
Step 950
950
#022E24
oklch(26.9% 0.05 173.2)
#00A181 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) | #9C957F | 0.127 |
| Deuteranopia (no green cones) | #8B8983 | 0.121 |
| Tritanopia (no blue cones) | #00A398 | 0.033 |
| Achromatopsia (no color) | #8E8E8E | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00A181
#00A181
oklch(63.2% 0.122 172)
- #C16891
#C16891
oklch(63.1% 0.123 352.2)
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 #00A181, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.028
- Persian Green #2A9D8F ΔE 0.030
- Jade #1FA774 ΔE 0.030
- Blue Green #0F9B8E ΔE 0.031
- Sea #3C9992 ΔE 0.046
- Viridian #1E9167 ΔE 0.051
- Grey Teal #5E9B8A ΔE 0.055
- Dark Seafoam Green #3EAF76 ΔE 0.055
Use #00A181 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.