#31785A
Closest named color: Dark Aquamarine (#017371). oklch(51.9% 0.086 162.9), rgb(49, 120, 90).
Aa
White text reads best on this color (5.29:1).
About this color
#31785A is a medium-dark, moderately saturated green. In OKLCH its lightness is 52%, its chroma 0.086 and its hue 163°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.047 away. White text reads best on it, at 5.29:1.
| Hue family | Greens |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.086) |
| Temperature | in between |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.96:1 |
| White text | 5.29:1 |
Values
| HEX | #31785A |
| RGB | rgb(49, 120, 90) |
| HSL | hsl(155, 42%, 33%) |
| OKLCH | oklch(51.9% 0.086 162.9) |
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 #31785A | 5.29:1 | AA | Lc -81.5 | Fine for body text |
| Black text on #31785A | 3.96:1 | AA large text | Lc 28.0 | Dividers and decoration only |
| #31785A text on white | 5.29:1 | AA | Lc 76.1 | Fine for body text |
| #31785A text on black | 3.96:1 | AA large text | Lc -25.6 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3ECE7
oklch(93.5% 0.012 162)
-
Step 200
200
#CCDED5
oklch(88.5% 0.023 164.5)
-
Step 300
300
#A9CAB9
oklch(81% 0.043 162.9)
-
Step 400
400
#7AAE95
oklch(70.7% 0.066 163.3)
-
Step 500
500
#559A7A
oklch(63.1% 0.086 162.5)
-
Step 600
600
#368463
oklch(55.5% 0.093 162.8)
-
Step 700
700 (this color)
#31785A
oklch(51.9% 0.086 162.9)
-
Step 800
800
#235B43
oklch(42.6% 0.072 162.5)
-
Step 900
900
#224B39
oklch(37.7% 0.056 163.1)
-
Step 950
950
#152C21
oklch(27% 0.036 161.9)
#31785A 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) | #767058 | 0.084 |
| Deuteranopia (no green cones) | #6C685C | 0.082 |
| Tritanopia (no blue cones) | #127870 | 0.035 |
| Achromatopsia (no color) | #6B6B6B | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31785A
#31785A
oklch(51.9% 0.086 162.9)
- #8B5476
#8B5476
oklch(51.9% 0.086 342.8)
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 #31785A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.047
- Bluegreen #017A79 ΔE 0.047
- Deep Turquoise #017374 ΔE 0.051
- Teal #008080 ΔE 0.055
- Jungle Green #048243 ΔE 0.056
- Deep Aqua #08787F ΔE 0.058
- Dark Olive Green #556B2F ΔE 0.060
- Dark Sage #598556 ΔE 0.061
Use #31785A 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.