#308F4C
Closest named color: Sea Green (#2E8B57). oklch(57.8% 0.134 149.7), rgb(48, 143, 76).
Aa
Black text reads best on this color (5.15:1).
About this color
#308F4C is a medium-dark, moderately saturated green. In OKLCH its lightness is 58%, its chroma 0.134 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.022 away. Black text reads best on it, at 5.15:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.134) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 5.15:1 |
| White text | 4.07:1 |
Values
| HEX | #308F4C |
| RGB | rgb(48, 143, 76) |
| HSL | hsl(138, 50%, 37%) |
| OKLCH | oklch(57.8% 0.134 149.7) |
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 #308F4C | 4.07:1 | AA large text | Lc -73.1 | Content text, not long reading |
| Black text on #308F4C | 5.15:1 | AA | Lc 36.5 | Non-text elements, placeholder text |
| #308F4C text on white | 4.07:1 | AA large text | Lc 67.6 | Content text, not long reading |
| #308F4C text on black | 5.15:1 | AA | Lc -34.1 | 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E2EDE4
oklch(93.5% 0.017 151.1)
-
Step 200
200
#CAE0CE
oklch(88.5% 0.034 150.8)
-
Step 300
300
#A6CCAC
oklch(80.9% 0.06 149.5)
-
Step 400
400
#74B280
oklch(70.8% 0.097 149.5)
-
Step 500
500
#4B9E60
oklch(63.1% 0.123 149.8)
-
Step 600
600 (this color)
#308F4C
oklch(57.8% 0.134 149.7)
-
Step 700
700
#187337
oklch(49% 0.124 149.7)
-
Step 800
800
#185E2E
oklch(42.7% 0.104 149.7)
-
Step 900
900
#1C4D29
oklch(37.6% 0.081 149.6)
-
Step 950
950
#122D18
oklch(26.9% 0.051 149.2)
#308F4C 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) | #908347 | 0.111 |
| Deuteranopia (no green cones) | #847B51 | 0.108 |
| Tritanopia (no blue cones) | #0A8C7F | 0.075 |
| Achromatopsia (no color) | #7E7E7E | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #308F4C
#308F4C
oklch(57.8% 0.134 149.7)
- #A5599F
#A5599F
oklch(57.8% 0.135 330.1)
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 #308F4C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.022
- Fern Green #548D44 ΔE 0.028
- Light Forest Green #4F9153 ΔE 0.029
- Viridian #1E9167 ΔE 0.034
- Kelley Green #009337 ΔE 0.035
- Forest Green #228B22 ΔE 0.044
- Jungle Green #048243 ΔE 0.046
- Moss Green #658B38 ΔE 0.047
Use #308F4C 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.