#3F7553
Closest named color: Dark Olive Green (#556B2F). oklch(51.5% 0.08 154.8), rgb(63, 117, 83).
Aa
White text reads best on this color (5.41:1).
About this color
#3F7553 is a medium-dark, moderately saturated green. In OKLCH its lightness is 51%, its chroma 0.080 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Olive Green (#556B2F), ΔE 0.047 away. White text reads best on it, at 5.41:1.
| Hue family | Greens |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.080) |
| Temperature | in between |
| Nearest name | Dark Olive Green (#556B2F) |
| Black text | 3.88:1 |
| White text | 5.41:1 |
Values
| HEX | #3F7553 |
| RGB | rgb(63, 117, 83) |
| HSL | hsl(142, 30%, 35%) |
| OKLCH | oklch(51.5% 0.08 154.8) |
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 #3F7553 | 5.41:1 | AA | Lc -82.2 | Fine for body text |
| Black text on #3F7553 | 3.88:1 | AA large text | Lc 27.2 | Dividers and decoration only |
| #3F7553 text on white | 5.41:1 | AA | Lc 76.8 | Fine for body text |
| #3F7553 text on black | 3.88:1 | AA large text | Lc -24.9 | 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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E4ECE7
oklch(93.6% 0.011 158.8)
-
Step 200
200
#CFDED3
oklch(88.6% 0.022 154.1)
-
Step 300
300
#AEC8B6
oklch(80.8% 0.038 155.3)
-
Step 400
400
#82AC90
oklch(70.6% 0.061 155.4)
-
Step 500
500
#629874
oklch(63.2% 0.079 154.4)
-
Step 600
600
#47825D
oklch(55.6% 0.085 154.9)
-
Step 700
700 (this color)
#3F7553
oklch(51.5% 0.08 154.8)
-
Step 800
800
#2F5A3F
oklch(42.8% 0.066 154.9)
-
Step 900
900
#2A4A35
oklch(37.8% 0.053 154.3)
-
Step 950
950
#192B1F
oklch(26.9% 0.033 154.5)
#3F7553 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) | #756D51 | 0.072 |
| Deuteranopia (no green cones) | #6D6855 | 0.070 |
| Tritanopia (no blue cones) | #33746C | 0.040 |
| Achromatopsia (no color) | #6A6A6A | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F7553
#3F7553
oklch(51.5% 0.08 154.8)
- #84567A
#84567A
oklch(51.6% 0.079 334.9)
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 #3F7553, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive Green #556B2F ΔE 0.047
- Dark Moss Green #606C38 ΔE 0.047
- Muddy Green #657432 ΔE 0.055
- Dark Aquamarine #017371 ΔE 0.055
- Bluegreen #017A79 ΔE 0.058
- Deep Turquoise #017374 ΔE 0.059
- Military Green #667C3E ΔE 0.059
- Dark Sage #598556 ΔE 0.060
Use #3F7553 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.