#2A9DAD
Closest named color: Sea (#3C9992). oklch(64.1% 0.1 208.9), rgb(42, 157, 173).
Aa
Black text reads best on this color (6.52:1).
About this color
#2A9DAD is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 64%, its chroma 0.100 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Sea (#3C9992), ΔE 0.039 away. Black text reads best on it, at 6.52:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Sea (#3C9992) |
| Black text | 6.52:1 |
| White text | 3.21:1 |
Values
| HEX | #2A9DAD |
| RGB | rgb(42, 157, 173) |
| HSL | hsl(187, 61%, 42%) |
| OKLCH | oklch(64.1% 0.1 208.9) |
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 #2A9DAD | 3.21:1 | AA large text | Lc -64.5 | Content text, not long reading |
| Black text on #2A9DAD | 6.52:1 | AA | Lc 45.0 | Large or bold text, headings |
| #2A9DAD text on white | 3.21:1 | AA large text | Lc 59.0 | Large or bold text, headings |
| #2A9DAD text on black | 6.52:1 | AA | Lc -42.7 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E0EDEF
oklch(93.7% 0.014 207.9)
-
Step 200
200
#C6DFE3
oklch(88.6% 0.027 208.3)
-
Step 300
300
#9CCAD2
oklch(80.9% 0.049 209.3)
-
Step 400
400
#61AEBB
oklch(70.6% 0.078 209.6)
-
Step 500
500 (this color)
#2A9DAD
oklch(64.1% 0.1 208.9)
-
Step 600
600
#008291
oklch(55.5% 0.096 208.9)
-
Step 700
700
#006D7A
oklch(49% 0.084 209.1)
-
Step 800
800
#005A64
oklch(42.8% 0.073 207.9)
-
Step 900
900
#004B54
oklch(37.8% 0.065 208.5)
-
Step 950
950
#072C31
oklch(27% 0.041 208.1)
#2A9DAD 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) | #8F97AE | 0.096 |
| Deuteranopia (no green cones) | #7D8AAD | 0.087 |
| Tritanopia (no blue cones) | #00A4A2 | 0.032 |
| Achromatopsia (no color) | #8F8F8F | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A9DAD
#2A9DAD
oklch(64.1% 0.1 208.9)
- #C27469
#C27469
oklch(64.1% 0.101 28.7)
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 #2A9DAD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea #3C9992 ΔE 0.039
- Cadet Blue #5F9EA0 ΔE 0.041
- Teal Green #0A9396 ΔE 0.044
- Persian Green #2A9D8F ΔE 0.046
- Blue Green #0F9B8E ΔE 0.049
- Dull Teal #5F9E8F ΔE 0.056
- Turquoise Blue #06B1C4 ΔE 0.058
- Grey Teal #5E9B8A ΔE 0.058
Use #2A9DAD 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.