#00A9B1
Closest named color: Turquoise Blue (#06B1C4). oklch(66.8% 0.114 200.8), rgb(0, 169, 177).
Aa
Black text reads best on this color (7.31:1).
About this color
#00A9B1 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.114 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.032 away. Black text reads best on it, at 7.31:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.31:1 |
| White text | 2.87:1 |
Values
| HEX | #00A9B1 |
| RGB | rgb(0, 169, 177) |
| HSL | hsl(183, 100%, 35%) |
| OKLCH | oklch(66.8% 0.114 200.8) |
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 #00A9B1 | 2.87:1 | Fails | Lc -59.6 | Large or bold text, headings |
| Black text on #00A9B1 | 7.31:1 | AAA | Lc 49.7 | Large or bold text, headings |
| #00A9B1 text on white | 2.87:1 | Fails | Lc 54.3 | Large or bold text, headings |
| #00A9B1 text on black | 7.31:1 | AAA | Lc -47.5 | Large or bold text, headings |
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
#F0F7F7
oklch(97.1% 0.007 197)
-
Step 100
100
#DEEDEE
oklch(93.5% 0.016 201.7)
-
Step 200
200
#C3E0E1
oklch(88.6% 0.031 199.2)
-
Step 300
300
#96CCCF
oklch(80.9% 0.056 200.4)
-
Step 400
400
#53B1B7
oklch(70.6% 0.089 201)
-
Step 500
500 (this color)
#00A9B1
oklch(66.8% 0.114 200.8)
-
Step 600
600
#00838A
oklch(55.5% 0.094 201.4)
-
Step 700
700
#006E74
oklch(49% 0.083 201.4)
-
Step 800
800
#005B5F
oklch(42.8% 0.073 200)
-
Step 900
900
#004B4F
oklch(37.5% 0.064 200.9)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#00A9B1 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) | #9BA1B2 | 0.115 |
| Deuteranopia (no green cones) | #8792B2 | 0.107 |
| Tritanopia (no blue cones) | #00B0AB | 0.025 |
| Achromatopsia (no color) | #989898 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00A9B1
#00A9B1
oklch(66.8% 0.114 200.8)
- #D17776
#D17776
oklch(66.8% 0.113 21.2)
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 #00A9B1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.032
- Light Sea Green #20B2AA ΔE 0.033
- Cadet Blue #5F9EA0 ΔE 0.050
- Persian Green #2A9D8F ΔE 0.052
- Sea #3C9992 ΔE 0.054
- Topaz #13BBAF ΔE 0.055
- Blue Green #0F9B8E ΔE 0.057
- Dull Teal #5F9E8F ΔE 0.060
Use #00A9B1 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.