#237B4B
Closest named color: Jungle Green (#048243). oklch(51.9% 0.112 155), rgb(35, 123, 75).
Aa
White text reads best on this color (5.24:1).
About this color
#237B4B is a medium-dark, moderately saturated green. In OKLCH its lightness is 52%, its chroma 0.112 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jungle Green (#048243), ΔE 0.029 away. White text reads best on it, at 5.24:1.
| Hue family | Greens |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.112) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 4.00:1 |
| White text | 5.24:1 |
Values
| HEX | #237B4B |
| RGB | rgb(35, 123, 75) |
| HSL | hsl(147, 56%, 31%) |
| OKLCH | oklch(51.9% 0.112 155) |
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 #237B4B | 5.24:1 | AA | Lc -81.0 | Fine for body text |
| Black text on #237B4B | 4.00:1 | AA large text | Lc 28.4 | Dividers and decoration only |
| #237B4B text on white | 5.24:1 | AA | Lc 75.7 | Fine for body text |
| #237B4B text on black | 4.00:1 | AA large text | Lc -26.1 | 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E2EDE5
oklch(93.6% 0.016 154.5)
-
Step 200
200
#CADFD1
oklch(88.4% 0.029 156.6)
-
Step 300
300
#A6CCB1
oklch(81% 0.055 154.1)
-
Step 400
400
#73B189
oklch(70.7% 0.087 155.2)
-
Step 500
500
#4B9D6B
oklch(63.1% 0.111 154.8)
-
Step 600
600
#278753
oklch(55.5% 0.12 155.1)
-
Step 700
700 (this color)
#237B4B
oklch(51.9% 0.112 155)
-
Step 800
800
#185D38
oklch(42.6% 0.092 155.3)
-
Step 900
900
#1C4D30
oklch(37.8% 0.073 154.7)
-
Step 950
950
#122D1C
oklch(27% 0.046 154.3)
#237B4B 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) | #7B7148 | 0.100 |
| Deuteranopia (no green cones) | #70694E | 0.098 |
| Tritanopia (no blue cones) | #007A6F | 0.055 |
| Achromatopsia (no color) | #6C6C6C | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #237B4B
#237B4B
oklch(51.9% 0.112 155)
- #8F4E82
#8F4E82
oklch(51.9% 0.111 334.9)
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 #237B4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.029
- Sea Green #2E8B57 ΔE 0.050
- Tree Green #2A7E19 ΔE 0.055
- Dark Olive Green #556B2F ΔE 0.059
- Dark Sage #598556 ΔE 0.063
- Dark Grass Green #388004 ΔE 0.065
- Muddy Green #657432 ΔE 0.065
- Military Green #667C3E ΔE 0.066
Use #237B4B 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.