#2AA3BF
Closest named color: Turquoise Blue (#06B1C4). oklch(66.4% 0.109 217.5), rgb(42, 163, 191).
Aa
Black text reads best on this color (7.08:1).
About this color
#2AA3BF is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 66%, its chroma 0.109 and its hue 218°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.039 away. Black text reads best on it, at 7.08:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.08:1 |
| White text | 2.96:1 |
Values
| HEX | #2AA3BF |
| RGB | rgb(42, 163, 191) |
| HSL | hsl(191, 64%, 46%) |
| OKLCH | oklch(66.4% 0.109 217.5) |
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 #2AA3BF | 2.96:1 | Fails | Lc -61.1 | Content text, not long reading |
| Black text on #2AA3BF | 7.08:1 | AAA | Lc 48.3 | Large or bold text, headings |
| #2AA3BF text on white | 2.96:1 | Fails | Lc 55.8 | Large or bold text, headings |
| #2AA3BF text on black | 7.08:1 | AAA | Lc -46.0 | 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
#F0F7F9
oklch(97.1% 0.008 216.6)
-
Step 100
100
#DFEDF1
oklch(93.7% 0.016 216.7)
-
Step 200
200
#C4DEE6
oklch(88.4% 0.03 218.2)
-
Step 300
300
#9ACAD7
oklch(81% 0.053 216.2)
-
Step 400
400
#5DAEC4
oklch(70.8% 0.085 217.6)
-
Step 500
500 (this color)
#2AA3BF
oklch(66.4% 0.109 217.5)
-
Step 600
600
#00819A
oklch(55.7% 0.1 217.7)
-
Step 700
700
#006C81
oklch(49% 0.088 217.4)
-
Step 800
800
#00596A
oklch(42.8% 0.076 216.6)
-
Step 900
900
#004A59
oklch(37.7% 0.067 217.2)
-
Step 950
950
#042C35
oklch(27.1% 0.045 216.7)
#2AA3BF 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) | #919EC1 | 0.094 |
| Deuteranopia (no green cones) | #7D90BF | 0.083 |
| Tritanopia (no blue cones) | #00ADAC | 0.048 |
| Achromatopsia (no color) | #969696 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2AA3BF
#2AA3BF
oklch(66.4% 0.109 217.5)
- #CC7B62
#CC7B62
oklch(66.4% 0.108 37.9)
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 #2AA3BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.039
- Cadet Blue #5F9EA0 ΔE 0.052
- Greyblue #77A1B5 ΔE 0.061
- Light Sea Green #20B2AA ΔE 0.062
- Sea #3C9992 ΔE 0.065
- Persian Green #2A9D8F ΔE 0.071
- Teal Green #0A9396 ΔE 0.072
- Faded Blue #658CBB ΔE 0.072
Use #2AA3BF 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.