#3F7465
Closest named color: Dark Aquamarine (#017371). oklch(51.7% 0.062 173.5), rgb(63, 116, 101).
Aa
White text reads best on this color (5.38:1).
About this color
#3F7465 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 52%, its chroma 0.062 and its hue 173°. 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 5.38:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.89:1 |
| White text | 5.38:1 |
Values
| HEX | #3F7465 |
| RGB | rgb(63, 116, 101) |
| HSL | hsl(163, 30%, 35%) |
| OKLCH | oklch(51.7% 0.062 173.5) |
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 #3F7465 | 5.38:1 | AA | Lc -82.1 | Fine for body text |
| Black text on #3F7465 | 3.89:1 | AA large text | Lc 27.3 | Dividers and decoration only |
| #3F7465 text on white | 5.38:1 | AA | Lc 76.7 | Fine for body text |
| #3F7465 text on black | 3.89:1 | AA large text | Lc -25.0 | 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 700.
-
Step 50
50
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECE9
oklch(93.6% 0.009 171.8)
-
Step 200
200
#CFDDD8
oklch(88.6% 0.016 172.6)
-
Step 300
300
#AEC7BF
oklch(80.9% 0.029 174.3)
-
Step 400
400
#82AB9E
oklch(70.7% 0.048 173.4)
-
Step 500
500
#619686
oklch(63.1% 0.062 173.2)
-
Step 600
600
#468070
oklch(55.5% 0.067 173.9)
-
Step 700
700 (this color)
#3F7465
oklch(51.7% 0.062 173.5)
-
Step 800
800
#2E584C
oklch(42.6% 0.052 173.2)
-
Step 900
900
#2A4940
oklch(37.8% 0.04 173.6)
-
Step 950
950
#192B25
oklch(27.1% 0.026 171.3)
#3F7465 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) | #716E64 | 0.065 |
| Deuteranopia (no green cones) | #686866 | 0.061 |
| Tritanopia (no blue cones) | #2D7570 | 0.020 |
| Achromatopsia (no color) | #6A6A6A | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F7465
#3F7465
oklch(51.7% 0.062 173.5)
- #85596B
#85596B
oklch(51.7% 0.063 353.3)
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 #3F7465, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.037
- Bluegreen #017A79 ΔE 0.039
- Deep Turquoise #017374 ΔE 0.039
- Deep Aqua #08787F ΔE 0.044
- Teal #008080 ΔE 0.049
- Dark Aqua #05696B ΔE 0.056
- Slate #516572 ΔE 0.060
- Dim Gray #696969 ΔE 0.062
Use #3F7465 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.