#3A978F
Closest named color: Sea (#3C9992). oklch(61.9% 0.088 187.3), rgb(58, 151, 143).
Aa
Black text reads best on this color (6.00:1).
About this color
#3A978F is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 62%, its chroma 0.088 and its hue 187°. Its hue sits on the cool side of the wheel. The nearest named color is Sea (#3C9992), ΔE 0.007 away. Black text reads best on it, at 6.00:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Sea (#3C9992) |
| Black text | 6.00:1 |
| White text | 3.49:1 |
Values
| HEX | #3A978F |
| RGB | rgb(58, 151, 143) |
| HSL | hsl(175, 44%, 41%) |
| OKLCH | oklch(61.9% 0.088 187.3) |
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 #3A978F | 3.49:1 | AA large text | Lc -67.8 | Content text, not long reading |
| Black text on #3A978F | 6.00:1 | AA | Lc 41.8 | Non-text elements, placeholder text |
| #3A978F text on white | 3.49:1 | AA large text | Lc 62.3 | Content text, not long reading |
| #3A978F text on black | 6.00:1 | AA | Lc -39.4 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEB
oklch(93.7% 0.013 185.1)
-
Step 200
200
#C8DFDC
oklch(88.6% 0.025 187.3)
-
Step 300
300
#A2CAC5
oklch(80.9% 0.043 187)
-
Step 400
400
#6CAFA8
oklch(70.7% 0.069 187.3)
-
Step 500
500 (this color)
#3A978F
oklch(61.9% 0.088 187.3)
-
Step 600
600
#09857D
oklch(55.6% 0.095 187.3)
-
Step 700
700
#007069
oklch(49.1% 0.086 187.3)
-
Step 800
800
#035C56
oklch(42.8% 0.074 187.1)
-
Step 900
900
#134B47
oklch(37.6% 0.057 188.2)
-
Step 950
950
#0E2C29
oklch(26.9% 0.036 186.4)
#3A978F 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) | #8F8F8F | 0.093 |
| Deuteranopia (no green cones) | #818590 | 0.087 |
| Tritanopia (no blue cones) | #009A94 | 0.020 |
| Achromatopsia (no color) | #898989 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A978F
#3A978F
oklch(61.9% 0.088 187.3)
- #B36F7C
#B36F7C
oklch(61.8% 0.088 7.5)
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 #3A978F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea #3C9992 ΔE 0.007
- Persian Green #2A9D8F ΔE 0.019
- Blue Green #0F9B8E ΔE 0.020
- Dusty Teal #4C9085 ΔE 0.023
- Teal Green #0A9396 ΔE 0.027
- Grey Teal #5E9B8A ΔE 0.035
- Dull Teal #5F9E8F ΔE 0.040
- Ocean Green #3D9973 ΔE 0.044
Use #3A978F 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.