#3F7A80
Closest named color: Deep Aqua (#08787F). oklch(54.2% 0.062 204.1), rgb(63, 122, 128).
Aa
White text reads best on this color (4.87:1).
About this color
#3F7A80 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 54%, its chroma 0.062 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.032 away. White text reads best on it, at 4.87:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 4.30:1 |
| White text | 4.87:1 |
Values
| HEX | #3F7A80 |
| RGB | rgb(63, 122, 128) |
| HSL | hsl(186, 34%, 37%) |
| OKLCH | oklch(54.2% 0.062 204.1) |
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 #3F7A80 | 4.87:1 | AA | Lc -79.1 | Fine for body text |
| Black text on #3F7A80 | 4.30:1 | AA large text | Lc 30.4 | Non-text elements, placeholder text |
| #3F7A80 text on white | 4.87:1 | AA | Lc 73.7 | Content text, not long reading |
| #3F7A80 text on black | 4.30:1 | AA large text | Lc -28.0 | Dividers and decoration only |
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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4EBEC
oklch(93.5% 0.008 207.1)
-
Step 200
200
#CEDCDE
oklch(88.4% 0.015 207.1)
-
Step 300
300
#ADC6C9
oklch(80.9% 0.027 205.4)
-
Step 400
400
#80A9AD
oklch(70.6% 0.045 203.7)
-
Step 500
500
#5F9499
oklch(63.1% 0.057 203.4)
-
Step 600
600 (this color)
#3F7A80
oklch(54.2% 0.062 204.1)
-
Step 700
700
#346A70
oklch(49% 0.058 205)
-
Step 800
800
#2C575B
oklch(42.8% 0.048 203.4)
-
Step 900
900
#28474B
oklch(37.6% 0.037 206.2)
-
Step 950
950
#182A2C
oklch(27% 0.024 204.7)
#3F7A80 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) | #727680 | 0.062 |
| Deuteranopia (no green cones) | #676E80 | 0.056 |
| Tritanopia (no blue cones) | #187E7C | 0.029 |
| Achromatopsia (no color) | #717171 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F7A80
#3F7A80
oklch(54.2% 0.062 204.1)
- #90615E
#90615E
oklch(54.2% 0.062 23.4)
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 #3F7A80, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.032
- Teal #008080 ΔE 0.033
- Bluegreen #017A79 ΔE 0.035
- Ocean #017B92 ΔE 0.038
- Metallic Blue #4F738E ΔE 0.039
- Deep Turquoise #017374 ΔE 0.046
- Cerulean #457B9D ΔE 0.047
- Dark Aquamarine #017371 ΔE 0.049
Use #3F7A80 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.