#257A47
Closest named color: Jungle Green (#048243). oklch(51.6% 0.114 153), rgb(37, 122, 71).
Aa
White text reads best on this color (5.31:1).
About this color
#257A47 is a medium-dark, moderately saturated green. In OKLCH its lightness is 52%, its chroma 0.114 and its hue 153°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jungle Green (#048243), ΔE 0.028 away. White text reads best on it, at 5.31:1.
| Hue family | Greens |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.114) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 3.95:1 |
| White text | 5.31:1 |
Values
| HEX | #257A47 |
| RGB | rgb(37, 122, 71) |
| HSL | hsl(144, 53%, 31%) |
| OKLCH | oklch(51.6% 0.114 153) |
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 #257A47 | 5.31:1 | AA | Lc -81.4 | Fine for body text |
| Black text on #257A47 | 3.95:1 | AA large text | Lc 28.0 | Dividers and decoration only |
| #257A47 text on white | 5.31:1 | AA | Lc 76.1 | Fine for body text |
| #257A47 text on black | 3.95:1 | AA large text | Lc -25.6 | 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
#CBDFD0
oklch(88.5% 0.029 153.3)
-
Step 300
300
#A6CBB0
oklch(80.8% 0.055 153.4)
-
Step 400
400
#75B186
oklch(70.7% 0.089 152.6)
-
Step 500
500
#4D9D68
oklch(63.1% 0.113 152.9)
-
Step 600
600
#2A874F
oklch(55.5% 0.123 153)
-
Step 700
700 (this color)
#257A47
oklch(51.6% 0.114 153)
-
Step 800
800
#1A5D35
oklch(42.6% 0.094 153.1)
-
Step 900
900
#1D4D2E
oklch(37.8% 0.075 152.7)
-
Step 950
950
#122D1B
oklch(27% 0.047 152.8)
#257A47 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) | #7A7043 | 0.098 |
| Deuteranopia (no green cones) | #6F684A | 0.097 |
| Tritanopia (no blue cones) | #00786D | 0.059 |
| Achromatopsia (no color) | #6B6B6B | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #257A47
#257A47
oklch(51.6% 0.114 153)
- #8D4D83
#8D4D83
oklch(51.6% 0.112 333.1)
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 #257A47, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.028
- Tree Green #2A7E19 ΔE 0.051
- Sea Green #2E8B57 ΔE 0.053
- Dark Olive Green #556B2F ΔE 0.057
- Dark Grass Green #388004 ΔE 0.062
- Muddy Green #657432 ΔE 0.064
- Dark Sage #598556 ΔE 0.065
- Dark Moss Green #606C38 ΔE 0.066
Use #257A47 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.