#31A37A
Closest named color: Jade (#1FA774). oklch(64.2% 0.119 164.7), rgb(49, 163, 122).
Aa
Black text reads best on this color (6.65:1).
About this color
#31A37A is a medium-light, moderately saturated green. In OKLCH its lightness is 64%, its chroma 0.119 and its hue 165°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jade (#1FA774), ΔE 0.018 away. Black text reads best on it, at 6.65:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.119) |
| Temperature | in between |
| Nearest name | Jade (#1FA774) |
| Black text | 6.65:1 |
| White text | 3.15:1 |
Values
| HEX | #31A37A |
| RGB | rgb(49, 163, 122) |
| HSL | hsl(158, 54%, 42%) |
| OKLCH | oklch(64.2% 0.119 164.7) |
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 #31A37A | 3.15:1 | AA large text | Lc -63.7 | Content text, not long reading |
| Black text on #31A37A | 6.65:1 | AA | Lc 45.7 | Large or bold text, headings |
| #31A37A text on white | 3.15:1 | AA large text | Lc 58.3 | Large or bold text, headings |
| #31A37A text on black | 6.65:1 | AA | Lc -43.4 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F1F7F4
oklch(97.1% 0.007 164.9)
-
Step 100
100
#E0EEE7
oklch(93.7% 0.018 164.6)
-
Step 200
200
#C6E0D4
oklch(88.4% 0.032 166.2)
-
Step 300
300
#9ECDB7
oklch(80.9% 0.058 164.7)
-
Step 400
400
#64B392
oklch(70.7% 0.093 165)
-
Step 500
500 (this color)
#31A37A
oklch(64.2% 0.119 164.7)
-
Step 600
600
#008861
oklch(55.5% 0.117 164.6)
-
Step 700
700
#007351
oklch(49.2% 0.104 164.3)
-
Step 800
800
#005E42
oklch(42.7% 0.09 164.7)
-
Step 900
900
#044E37
oklch(37.6% 0.077 165)
-
Step 950
950
#092E20
oklch(27.1% 0.049 164.1)
#31A37A 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) | #A09778 | 0.118 |
| Deuteranopia (no green cones) | #918C7D | 0.114 |
| Tritanopia (no blue cones) | #00A398 | 0.044 |
| Achromatopsia (no color) | #919191 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31A37A
#31A37A
oklch(64.2% 0.119 164.7)
- #BF6D9D
#BF6D9D
oklch(64.1% 0.119 344.9)
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 #31A37A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jade #1FA774 ΔE 0.018
- Ocean Green #3D9973 ΔE 0.028
- Dark Seafoam Green #3EAF76 ΔE 0.040
- Persian Green #2A9D8F ΔE 0.041
- Seaweed Green #35AD6B ΔE 0.041
- Bluey Green #2BB179 ΔE 0.042
- Blue Green #0F9B8E ΔE 0.045
- Algae #54AC68 ΔE 0.047
Use #31A37A 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.