#257C4E
Closest named color: Jungle Green (#048243). oklch(52.3% 0.11 155.9), rgb(37, 124, 78).
Aa
White text reads best on this color (5.15:1).
About this color
#257C4E is a medium-dark, moderately saturated green. In OKLCH its lightness is 52%, its chroma 0.110 and its hue 156°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jungle Green (#048243), ΔE 0.030 away. White text reads best on it, at 5.15:1.
| Hue family | Greens |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.110) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 4.07:1 |
| White text | 5.15:1 |
Values
| HEX | #257C4E |
| RGB | rgb(37, 124, 78) |
| HSL | hsl(148, 54%, 32%) |
| OKLCH | oklch(52.3% 0.11 155.9) |
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 #257C4E | 5.15:1 | AA | Lc -80.6 | Fine for body text |
| Black text on #257C4E | 4.07:1 | AA large text | Lc 28.9 | Dividers and decoration only |
| #257C4E text on white | 5.15:1 | AA | Lc 75.2 | Fine for body text |
| #257C4E text on black | 4.07:1 | AA large text | Lc -26.5 | 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
#E2EDE6
oklch(93.6% 0.015 158.2)
-
Step 200
200
#CADFD1
oklch(88.4% 0.029 156.6)
-
Step 300
300
#A6CBB2
oklch(80.8% 0.053 155.5)
-
Step 400
400
#74B18A
oklch(70.8% 0.085 155.5)
-
Step 500
500
#4B9D6D
oklch(63.1% 0.109 155.8)
-
Step 600
600
#278755
oklch(55.5% 0.118 156)
-
Step 700
700 (this color)
#257C4E
oklch(52.3% 0.11 155.9)
-
Step 800
800
#185D39
oklch(42.6% 0.091 156)
-
Step 900
900
#1C4D31
oklch(37.8% 0.072 155.5)
-
Step 950
950
#122D1D
oklch(27% 0.045 155.8)
#257C4E 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) | #7B724B | 0.098 |
| Deuteranopia (no green cones) | #706A51 | 0.096 |
| Tritanopia (no blue cones) | #007B70 | 0.052 |
| Achromatopsia (no color) | #6D6D6D | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #257C4E
#257C4E
oklch(52.3% 0.11 155.9)
- #904F82
#904F82
oklch(52.2% 0.11 335.6)
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 #257C4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.030
- Sea Green #2E8B57 ΔE 0.047
- Tree Green #2A7E19 ΔE 0.057
- Dark Sage #598556 ΔE 0.059
- Dark Olive Green #556B2F ΔE 0.061
- Military Green #667C3E ΔE 0.064
- Viridian #1E9167 ΔE 0.064
- Muddy Green #657432 ΔE 0.065
Use #257C4E 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.