#3F706E
Closest named color: Deep Turquoise (#017374). oklch(51% 0.053 192.2), rgb(63, 112, 110).
Aa
White text reads best on this color (5.59:1).
About this color
#3F706E is a medium-dark, muted teal or cyan. In OKLCH its lightness is 51%, its chroma 0.053 and its hue 192°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Turquoise (#017374), ΔE 0.033 away. White text reads best on it, at 5.59:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Deep Turquoise (#017374) |
| Black text | 3.75:1 |
| White text | 5.59:1 |
Values
| HEX | #3F706E |
| RGB | rgb(63, 112, 110) |
| HSL | hsl(178, 28%, 34%) |
| OKLCH | oklch(51% 0.053 192.2) |
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 #3F706E | 5.59:1 | AA | Lc -83.1 | Fine for body text |
| Black text on #3F706E | 3.75:1 | AA large text | Lc 26.2 | Dividers and decoration only |
| #3F706E text on white | 5.59:1 | AA | Lc 77.9 | Fine for body text |
| #3F706E text on black | 3.75:1 | AA large text | Lc -23.9 | 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 700.
-
Step 50
50
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4EBEB
oklch(93.5% 0.007 197)
-
Step 200
200
#CFDCDB
oklch(88.4% 0.014 191.4)
-
Step 300
300
#AEC6C5
oklch(80.8% 0.026 193.6)
-
Step 400
400
#83A9A7
oklch(70.6% 0.041 192.2)
-
Step 500
500
#639492
oklch(63.1% 0.053 192.7)
-
Step 600
600
#497E7C
oklch(55.6% 0.057 192.5)
-
Step 700
700 (this color)
#3F706E
oklch(51% 0.053 192.2)
-
Step 800
800
#305755
oklch(42.7% 0.045 191.4)
-
Step 900
900
#2B4846
oklch(37.8% 0.035 190.2)
-
Step 950
950
#1A2A29
oklch(27% 0.022 191)
#3F706E 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) | #6B6C6E | 0.057 |
| Deuteranopia (no green cones) | #62656F | 0.053 |
| Tritanopia (no blue cones) | #29736F | 0.019 |
| Achromatopsia (no color) | #686868 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F706E
#3F706E
oklch(51% 0.053 192.2)
- #825A5E
#825A5E
oklch(51.1% 0.053 12.5)
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 #3F706E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Turquoise #017374 ΔE 0.033
- Dark Aquamarine #017371 ΔE 0.033
- Deep Aqua #08787F ΔE 0.038
- Bluegreen #017A79 ΔE 0.039
- Slate #516572 ΔE 0.041
- Dark Aqua #05696B ΔE 0.046
- Teal #008080 ΔE 0.052
- Dim Gray #696969 ΔE 0.054
Use #3F706E 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.