#00A5B3
Closest named color: Turquoise Blue (#06B1C4). oklch(65.9% 0.113 205.5), rgb(0, 165, 179).
Aa
Black text reads best on this color (7.03:1).
About this color
#00A5B3 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 66%, its chroma 0.113 and its hue 205°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.038 away. Black text reads best on it, at 7.03:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.113) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.03:1 |
| White text | 2.98:1 |
Values
| HEX | #00A5B3 |
| RGB | rgb(0, 165, 179) |
| HSL | hsl(185, 100%, 35%) |
| OKLCH | oklch(65.9% 0.113 205.5) |
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 #00A5B3 | 2.98:1 | Fails | Lc -61.2 | Content text, not long reading |
| Black text on #00A5B3 | 7.03:1 | AAA | Lc 48.2 | Large or bold text, headings |
| #00A5B3 text on white | 2.98:1 | Fails | Lc 55.8 | Large or bold text, headings |
| #00A5B3 text on black | 7.03:1 | AAA | Lc -45.9 | 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
#F0F7F8
oklch(97.1% 0.008 207.1)
-
Step 100
100
#DEEDEF
oklch(93.6% 0.016 206.4)
-
Step 200
200
#C3DFE3
oklch(88.4% 0.03 207.1)
-
Step 300
300
#97CBD2
oklch(80.8% 0.055 206.5)
-
Step 400
400
#55B0BB
oklch(70.6% 0.088 205.9)
-
Step 500
500 (this color)
#00A5B3
oklch(65.9% 0.113 205.5)
-
Step 600
600
#00838E
oklch(55.7% 0.095 205.2)
-
Step 700
700
#006E78
oklch(49.1% 0.084 205.8)
-
Step 800
800
#005A62
oklch(42.7% 0.073 205.3)
-
Step 900
900
#004B52
oklch(37.7% 0.064 205.5)
-
Step 950
950
#002D31
oklch(27.1% 0.046 204.1)
#00A5B3 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) | #969EB4 | 0.111 |
| Deuteranopia (no green cones) | #818FB3 | 0.100 |
| Tritanopia (no blue cones) | #00ADA9 | 0.032 |
| Achromatopsia (no color) | #959595 | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00A5B3
#00A5B3
oklch(65.9% 0.113 205.5)
- #CE756E
#CE756E
oklch(65.9% 0.113 25.3)
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 #00A5B3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.038
- Light Sea Green #20B2AA ΔE 0.046
- Cadet Blue #5F9EA0 ΔE 0.049
- Sea #3C9992 ΔE 0.051
- Persian Green #2A9D8F ΔE 0.052
- Blue Green #0F9B8E ΔE 0.056
- Teal Green #0A9396 ΔE 0.060
- Dull Teal #5F9E8F ΔE 0.062
Use #00A5B3 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.