#3A8378
Closest named color: Teal (#008080). oklch(56% 0.075 182.3), rgb(58, 131, 120).
Aa
Black text reads best on this color (4.69:1).
About this color
#3A8378 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 56%, its chroma 0.075 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.031 away. Black text reads best on it, at 4.69:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.69:1 |
| White text | 4.47:1 |
Values
| HEX | #3A8378 |
| RGB | rgb(58, 131, 120) |
| HSL | hsl(171, 39%, 37%) |
| OKLCH | oklch(56% 0.075 182.3) |
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 #3A8378 | 4.47:1 | AA large text | Lc -76.3 | Fine for body text |
| Black text on #3A8378 | 4.69:1 | AA | Lc 33.2 | Non-text elements, placeholder text |
| #3A8378 text on white | 4.47:1 | AA large text | Lc 70.8 | Content text, not long reading |
| #3A8378 text on black | 4.69:1 | AA | Lc -30.8 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CCDDDA
oklch(88.4% 0.019 184.2)
-
Step 300
300
#AAC8C2
oklch(80.9% 0.033 182)
-
Step 400
400
#7BACA3
oklch(70.7% 0.054 182.1)
-
Step 500
500
#56978D
oklch(63% 0.069 183.1)
-
Step 600
600 (this color)
#3A8378
oklch(56% 0.075 182.3)
-
Step 700
700
#2A6E64
oklch(49.2% 0.07 182.1)
-
Step 800
800
#255951
oklch(42.6% 0.057 182)
-
Step 900
900
#234943
oklch(37.5% 0.045 182.4)
-
Step 950
950
#162B27
oklch(27% 0.028 180.5)
#3A8378 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) | #7E7C78 | 0.081 |
| Deuteranopia (no green cones) | #727479 | 0.075 |
| Tritanopia (no blue cones) | #078580 | 0.023 |
| Achromatopsia (no color) | #777777 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A8378
#3A8378
oklch(56% 0.075 182.3)
- #9A6271
#9A6271
oklch(56.1% 0.075 2.4)
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 #3A8378, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.031
- Dark Cyan #008B8B ΔE 0.034
- Bluegreen #017A79 ΔE 0.042
- Dusty Teal #4C9085 ΔE 0.045
- Deep Aqua #08787F ΔE 0.049
- Teal Green #0A9396 ΔE 0.054
- Dark Sage #598556 ΔE 0.056
- Viridian #1E9167 ΔE 0.059
Use #3A8378 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.