#318561
Closest named color: Sea Green (#2E8B57). oklch(55.6% 0.099 161.9), rgb(49, 133, 97).
Aa
Black text reads best on this color (4.65:1).
About this color
#318561 is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.099 and its hue 162°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.027 away. Black text reads best on it, at 4.65:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.099) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.65:1 |
| White text | 4.50:1 |
Values
| HEX | #318561 |
| RGB | rgb(49, 133, 97) |
| HSL | hsl(154, 46%, 36%) |
| OKLCH | oklch(55.6% 0.099 161.9) |
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 #318561 | 4.50:1 | AA | Lc -76.5 | Fine for body text |
| Black text on #318561 | 4.65:1 | AA | Lc 33.1 | Non-text elements, placeholder text |
| #318561 text on white | 4.50:1 | AA | Lc 71.0 | Content text, not long reading |
| #318561 text on black | 4.65:1 | AA | Lc -30.6 | 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 600.
-
Step 50
50
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3EDE7
oklch(93.7% 0.013 159.9)
-
Step 200
200
#CBDFD4
oklch(88.6% 0.026 161.9)
-
Step 300
300
#A8CAB8
oklch(80.9% 0.044 162.2)
-
Step 400
400
#77AF93
oklch(70.7% 0.072 162.1)
-
Step 500
500
#519B78
oklch(63.1% 0.092 161.6)
-
Step 600
600 (this color)
#318561
oklch(55.6% 0.099 161.9)
-
Step 700
700
#227150
oklch(49.2% 0.093 161.6)
-
Step 800
800
#1F5C42
oklch(42.8% 0.077 162)
-
Step 900
900
#204B38
oklch(37.6% 0.059 162.6)
-
Step 950
950
#142C21
oklch(27% 0.037 162.7)
#318561 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) | #837B5F | 0.096 |
| Deuteranopia (no green cones) | #777363 | 0.092 |
| Tritanopia (no blue cones) | #00857B | 0.040 |
| Achromatopsia (no color) | #777777 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #318561
#318561
oklch(55.6% 0.099 161.9)
- #9A5B84
#9A5B84
oklch(55.6% 0.099 341.4)
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 #318561, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.027
- Viridian #1E9167 ΔE 0.035
- Dark Sage #598556 ΔE 0.037
- Jungle Green #048243 ΔE 0.048
- Light Forest Green #4F9153 ΔE 0.054
- Teal #008080 ΔE 0.056
- Fern Green #548D44 ΔE 0.057
- Dark Cyan #008B8B ΔE 0.060
Use #318561 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.