#00A18B
Closest named color: Persian Green (#2A9D8F). oklch(63.5% 0.116 178.4), rgb(0, 161, 139).
Aa
Black text reads best on this color (6.47:1).
About this color
#00A18B is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 63%, its chroma 0.116 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Persian Green (#2A9D8F), ΔE 0.018 away. Black text reads best on it, at 6.47:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Persian Green (#2A9D8F) |
| Black text | 6.47:1 |
| White text | 3.24:1 |
Values
| HEX | #00A18B |
| RGB | rgb(0, 161, 139) |
| HSL | hsl(172, 100%, 32%) |
| OKLCH | oklch(63.5% 0.116 178.4) |
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 #00A18B | 3.24:1 | AA large text | Lc -64.5 | Content text, not long reading |
| Black text on #00A18B | 6.47:1 | AA | Lc 45.0 | Non-text elements, placeholder text |
| #00A18B text on white | 3.24:1 | AA large text | Lc 59.1 | Large or bold text, headings |
| #00A18B text on black | 6.47:1 | AA | Lc -42.6 | 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
#DFEEEA
oklch(93.7% 0.017 178.3)
-
Step 200
200
#C4E0D9
oklch(88.4% 0.031 178.8)
-
Step 300
300
#99CDC1
oklch(80.9% 0.057 179)
-
Step 400
400
#59B3A1
oklch(70.6% 0.091 178.8)
-
Step 500
500 (this color)
#00A18B
oklch(63.5% 0.116 178.4)
-
Step 600
600
#008674
oklch(55.5% 0.101 178.9)
-
Step 700
700
#007161
oklch(49.1% 0.09 178.4)
-
Step 800
800
#005D4F
oklch(42.8% 0.079 177.8)
-
Step 900
900
#004D42
oklch(37.6% 0.069 179)
-
Step 950
950
#022E27
oklch(27% 0.048 179.1)
#00A18B 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) | #9A968A | 0.123 |
| Deuteranopia (no green cones) | #88898D | 0.117 |
| Tritanopia (no blue cones) | #00A49A | 0.022 |
| Achromatopsia (no color) | #8F8F8F | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00A18B
#00A18B
oklch(63.5% 0.116 178.4)
- #C26B8A
#C26B8A
oklch(63.5% 0.116 358.2)
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 #00A18B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Persian Green #2A9D8F ΔE 0.018
- Blue Green #0F9B8E ΔE 0.020
- Sea #3C9992 ΔE 0.035
- Ocean Green #3D9973 ΔE 0.036
- Jade #1FA774 ΔE 0.043
- Grey Teal #5E9B8A ΔE 0.049
- Dull Teal #5F9E8F ΔE 0.050
- Teal Green #0A9396 ΔE 0.051
Use #00A18B 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.