#3F7161
Closest named color: Dark Aquamarine (#017371). oklch(50.8% 0.06 171.2), rgb(63, 113, 97).
Aa
White text reads best on this color (5.60:1).
About this color
#3F7161 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 51%, its chroma 0.060 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.037 away. White text reads best on it, at 5.60:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.74:1 |
| White text | 5.60:1 |
Values
| HEX | #3F7161 |
| RGB | rgb(63, 113, 97) |
| HSL | hsl(161, 28%, 35%) |
| OKLCH | oklch(50.8% 0.06 171.2) |
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 #3F7161 | 5.60:1 | AA | Lc -83.2 | Fine for body text |
| Black text on #3F7161 | 3.74:1 | AA large text | Lc 26.1 | Dividers and decoration only |
| #3F7161 text on white | 5.60:1 | AA | Lc 77.9 | Fine for body text |
| #3F7161 text on black | 3.74:1 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5ECE9
oklch(93.7% 0.008 168.7)
-
Step 200
200
#CFDDD8
oklch(88.6% 0.016 172.6)
-
Step 300
300
#AFC7BE
oklch(80.9% 0.029 171)
-
Step 400
400
#84AA9D
oklch(70.6% 0.046 172)
-
Step 500
500
#639685
oklch(63.2% 0.061 171.4)
-
Step 600
600
#49806E
oklch(55.6% 0.065 170.8)
-
Step 700
700 (this color)
#3F7161
oklch(50.8% 0.06 171.2)
-
Step 800
800
#31584B
oklch(42.7% 0.05 170.5)
-
Step 900
900
#2B483F
oklch(37.6% 0.038 172.5)
-
Step 950
950
#1A2A25
oklch(26.9% 0.023 173)
#3F7161 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) | #6E6B60 | 0.062 |
| Deuteranopia (no green cones) | #666562 | 0.060 |
| Tritanopia (no blue cones) | #2F726C | 0.020 |
| Achromatopsia (no color) | #686868 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F7161
#3F7161
oklch(50.8% 0.06 171.2)
- #81576A
#81576A
oklch(50.8% 0.061 350.8)
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 #3F7161, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.037
- Deep Turquoise #017374 ΔE 0.040
- Bluegreen #017A79 ΔE 0.044
- Deep Aqua #08787F ΔE 0.049
- Dark Aqua #05696B ΔE 0.051
- Dark Green Blue #1F6357 ΔE 0.056
- Teal #008080 ΔE 0.057
- Slate #516572 ΔE 0.057
Use #3F7161 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.