#378676
Closest named color: Dark Cyan (#008B8B). oklch(56.6% 0.081 177.7), rgb(55, 134, 118).
Aa
Black text reads best on this color (4.83:1).
About this color
#378676 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 57%, its chroma 0.081 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Cyan (#008B8B), ΔE 0.033 away. Black text reads best on it, at 4.83:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Dark Cyan (#008B8B) |
| Black text | 4.83:1 |
| White text | 4.34:1 |
Values
| HEX | #378676 |
| RGB | rgb(55, 134, 118) |
| HSL | hsl(168, 42%, 37%) |
| OKLCH | oklch(56.6% 0.081 177.7) |
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 #378676 | 4.34:1 | AA large text | Lc -75.4 | Fine for body text |
| Black text on #378676 | 4.83:1 | AA | Lc 34.2 | Non-text elements, placeholder text |
| #378676 text on white | 4.34:1 | AA large text | Lc 69.9 | Content text, not long reading |
| #378676 text on black | 4.83:1 | AA | Lc -31.8 | 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
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CCDED9
oklch(88.6% 0.02 177.4)
-
Step 300
300
#A8C9C0
oklch(80.9% 0.038 177)
-
Step 400
400
#78ADA0
oklch(70.7% 0.059 177.5)
-
Step 500
500
#539989
oklch(63.2% 0.075 177.2)
-
Step 600
600 (this color)
#378676
oklch(56.6% 0.081 177.7)
-
Step 700
700
#256F60
oklch(49.2% 0.076 177)
-
Step 800
800
#215A4F
oklch(42.7% 0.062 178.3)
-
Step 900
900
#214A41
oklch(37.6% 0.049 177.3)
-
Step 950
950
#142B26
oklch(26.8% 0.031 178.2)
#378676 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) | #817E75 | 0.086 |
| Deuteranopia (no green cones) | #757677 | 0.081 |
| Tritanopia (no blue cones) | #008881 | 0.024 |
| Achromatopsia (no color) | #797979 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #378676
#378676
oklch(56.6% 0.081 177.7)
- #9D6276
#9D6276
oklch(56.7% 0.081 358.1)
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 #378676, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Cyan #008B8B ΔE 0.033
- Teal #008080 ΔE 0.036
- Dusty Teal #4C9085 ΔE 0.041
- Viridian #1E9167 ΔE 0.048
- Bluegreen #017A79 ΔE 0.049
- Dark Sage #598556 ΔE 0.051
- Teal Green #0A9396 ΔE 0.051
- Sea Green #2E8B57 ΔE 0.054
Use #378676 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.