#3F745E
Closest named color: Dark Aquamarine (#017371). oklch(51.5% 0.067 165.2), rgb(63, 116, 94).
Aa
White text reads best on this color (5.42:1).
About this color
#3F745E is a medium-dark, muted green. In OKLCH its lightness is 52%, its chroma 0.067 and its hue 165°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.043 away. White text reads best on it, at 5.42:1.
| Hue family | Greens |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.067) |
| Temperature | in between |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.87:1 |
| White text | 5.42:1 |
Values
| HEX | #3F745E |
| RGB | rgb(63, 116, 94) |
| HSL | hsl(155, 30%, 35%) |
| OKLCH | oklch(51.5% 0.067 165.2) |
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 #3F745E | 5.42:1 | AA | Lc -82.3 | Fine for body text |
| Black text on #3F745E | 3.87:1 | AA large text | Lc 27.1 | Dividers and decoration only |
| #3F745E text on white | 5.42:1 | AA | Lc 76.9 | Fine for body text |
| #3F745E text on black | 3.87:1 | AA large text | Lc -24.8 | 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 700.
-
Step 50
50
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECE8
oklch(93.6% 0.01 164.9)
-
Step 200
200
#CFDDD6
oklch(88.5% 0.018 164.6)
-
Step 300
300
#AEC8BB
oklch(81% 0.033 164)
-
Step 400
400
#82AB99
oklch(70.6% 0.052 166.2)
-
Step 500
500
#629780
oklch(63.2% 0.067 165.3)
-
Step 600
600
#478169
oklch(55.6% 0.072 165.3)
-
Step 700
700 (this color)
#3F745E
oklch(51.5% 0.067 165.2)
-
Step 800
800
#2F5947
oklch(42.8% 0.056 164.4)
-
Step 900
900
#2A493C
oklch(37.7% 0.044 165.6)
-
Step 950
950
#192B23
oklch(27% 0.028 164.8)
#3F745E 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) | #726D5D | 0.067 |
| Deuteranopia (no green cones) | #6A675F | 0.065 |
| Tritanopia (no blue cones) | #30746E | 0.026 |
| Achromatopsia (no color) | #6A6A6A | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F745E
#3F745E
oklch(51.5% 0.067 165.2)
- #845870
#845870
oklch(51.6% 0.067 345.8)
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 #3F745E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.043
- Bluegreen #017A79 ΔE 0.045
- Deep Turquoise #017374 ΔE 0.046
- Deep Aqua #08787F ΔE 0.053
- Teal #008080 ΔE 0.055
- Dark Moss Green #606C38 ΔE 0.056
- Dark Aqua #05696B ΔE 0.060
- Dark Olive Green #556B2F ΔE 0.060
Use #3F745E 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.