#3F7A79
Closest named color: Teal (#008080). oklch(54% 0.062 194), rgb(63, 122, 121).
Aa
White text reads best on this color (4.91:1).
About this color
#3F7A79 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 54%, its chroma 0.062 and its hue 194°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.031 away. White text reads best on it, at 4.91:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.27:1 |
| White text | 4.91:1 |
Values
| HEX | #3F7A79 |
| RGB | rgb(63, 122, 121) |
| HSL | hsl(179, 32%, 36%) |
| OKLCH | oklch(54% 0.062 194) |
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 #3F7A79 | 4.91:1 | AA | Lc -79.3 | Fine for body text |
| Black text on #3F7A79 | 4.27:1 | AA large text | Lc 30.2 | Non-text elements, placeholder text |
| #3F7A79 text on white | 4.91:1 | AA | Lc 73.9 | Content text, not long reading |
| #3F7A79 text on black | 4.27:1 | AA large text | Lc -27.8 | 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
#E4ECEB
oklch(93.7% 0.009 188.1)
-
Step 200
200
#CEDCDC
oklch(88.4% 0.015 196.9)
-
Step 300
300
#ADC7C6
oklch(81% 0.028 193.8)
-
Step 400
400
#81AAA9
oklch(70.8% 0.044 194.3)
-
Step 500
500
#5F9593
oklch(63.2% 0.057 192.8)
-
Step 600
600 (this color)
#3F7A79
oklch(54% 0.062 194)
-
Step 700
700
#356B6A
oklch(49.1% 0.057 193.9)
-
Step 800
800
#2D5757
oklch(42.7% 0.047 195.5)
-
Step 900
900
#294847
oklch(37.7% 0.037 193.1)
-
Step 950
950
#182A2A
oklch(26.9% 0.024 195.8)
#3F7A79 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) | #747579 | 0.065 |
| Deuteranopia (no green cones) | #696D7A | 0.061 |
| Tritanopia (no blue cones) | #1E7D79 | 0.023 |
| Achromatopsia (no color) | #707070 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F7A79
#3F7A79
oklch(54% 0.062 194)
- #8F6064
#8F6064
oklch(54% 0.062 13.7)
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 #3F7A79, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.031
- Bluegreen #017A79 ΔE 0.032
- Deep Aqua #08787F ΔE 0.033
- Deep Turquoise #017374 ΔE 0.043
- Dark Aquamarine #017371 ΔE 0.044
- Ocean #017B92 ΔE 0.046
- Metallic Blue #4F738E ΔE 0.049
- Dark Cyan #008B8B ΔE 0.052
Use #3F7A79 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.