#2A8AA3
Closest named color: Teal Blue (#01889F). oklch(59% 0.094 219.2), rgb(42, 138, 163).
Aa
Black text reads best on this color (5.26:1).
About this color
#2A8AA3 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 59%, its chroma 0.094 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.017 away. Black text reads best on it, at 5.26:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 5.26:1 |
| White text | 3.99:1 |
Values
| HEX | #2A8AA3 |
| RGB | rgb(42, 138, 163) |
| HSL | hsl(192, 59%, 40%) |
| OKLCH | oklch(59% 0.094 219.2) |
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 #2A8AA3 | 3.99:1 | AA large text | Lc -72.4 | Content text, not long reading |
| Black text on #2A8AA3 | 5.26:1 | AA | Lc 37.2 | Non-text elements, placeholder text |
| #2A8AA3 text on white | 3.99:1 | AA large text | Lc 66.9 | Content text, not long reading |
| #2A8AA3 text on black | 5.26:1 | AA | Lc -34.8 | 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 600.
-
Step 50
50
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C9DDE4
oklch(88.5% 0.023 220.8)
-
Step 300
300
#A3C8D3
oklch(81% 0.042 217.8)
-
Step 400
400
#6FABBD
oklch(70.7% 0.067 218.8)
-
Step 500
500
#4496AD
oklch(63.2% 0.086 219)
-
Step 600
600 (this color)
#2A8AA3
oklch(59% 0.094 219.2)
-
Step 700
700
#076C82
oklch(49.1% 0.087 218.8)
-
Step 800
800
#0F586A
oklch(42.7% 0.072 219.4)
-
Step 900
900
#174956
oklch(37.8% 0.056 218.4)
-
Step 950
950
#102B32
oklch(27.1% 0.035 217.1)
#2A8AA3 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) | #7A86A4 | 0.078 |
| Deuteranopia (no green cones) | #6A7AA3 | 0.071 |
| Tritanopia (no blue cones) | #009292 | 0.043 |
| Achromatopsia (no color) | #7F7F7F | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A8AA3
#2A8AA3
oklch(59% 0.094 219.2)
- #AD6952
#AD6952
oklch(59% 0.094 39.4)
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 #2A8AA3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.017
- Blue NCS #118AB2 ΔE 0.024
- Teal Green #0A9396 ΔE 0.040
- Dark Cyan #008B8B ΔE 0.043
- Cerulean #457B9D ΔE 0.044
- Off Blue #5684AE ΔE 0.045
- Steel Blue #4682B4 ΔE 0.045
- Dusty Blue #5A86AD ΔE 0.045
Use #2A8AA3 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.