#2A8978
Closest named color: Dark Cyan (#008B8B). oklch(57.1% 0.091 178.4), rgb(42, 137, 120).
Aa
Black text reads best on this color (4.94:1).
About this color
#2A8978 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 57%, its chroma 0.091 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Cyan (#008B8B), ΔE 0.028 away. Black text reads best on it, at 4.94:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Dark Cyan (#008B8B) |
| Black text | 4.94:1 |
| White text | 4.24:1 |
Values
| HEX | #2A8978 |
| RGB | rgb(42, 137, 120) |
| HSL | hsl(169, 53%, 35%) |
| OKLCH | oklch(57.1% 0.091 178.4) |
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 #2A8978 | 4.24:1 | AA large text | Lc -74.5 | Content text, not long reading |
| Black text on #2A8978 | 4.94:1 | AA | Lc 35.1 | Non-text elements, placeholder text |
| #2A8978 text on white | 4.24:1 | AA large text | Lc 69.0 | Content text, not long reading |
| #2A8978 text on black | 4.94:1 | AA | Lc -32.7 | 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 600.
-
Step 50
50
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2EDEA
oklch(93.7% 0.012 178)
-
Step 200
200
#CADED9
oklch(88.4% 0.022 179.1)
-
Step 300
300
#A5CAC1
oklch(81% 0.041 178.8)
-
Step 400
400
#72AEA1
oklch(70.6% 0.065 179.1)
-
Step 500
500
#499A8A
oklch(63.1% 0.083 178.8)
-
Step 600
600 (this color)
#2A8978
oklch(57.1% 0.091 178.4)
-
Step 700
700
#147061
oklch(49.1% 0.084 178.5)
-
Step 800
800
#165B4F
oklch(42.6% 0.07 178.5)
-
Step 900
900
#1B4B42
oklch(37.7% 0.054 178.9)
-
Step 950
950
#112C27
oklch(27% 0.035 179.9)
#2A8978 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) | #838177 | 0.095 |
| Deuteranopia (no green cones) | #767779 | 0.091 |
| Tritanopia (no blue cones) | #008B84 | 0.019 |
| Achromatopsia (no color) | #7B7B7B | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A8978
#2A8978
oklch(57.1% 0.091 178.4)
- #A36077
#A36077
oklch(57.1% 0.091 358.4)
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 #2A8978, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Cyan #008B8B ΔE 0.028
- Teal #008080 ΔE 0.038
- Dusty Teal #4C9085 ΔE 0.040
- Viridian #1E9167 ΔE 0.041
- Teal Green #0A9396 ΔE 0.046
- Sea Green #2E8B57 ΔE 0.051
- Bluegreen #017A79 ΔE 0.052
- Blue Green #0F9B8E ΔE 0.054
Use #2A8978 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.