#257537
Closest named color: Jungle Green (#048243). oklch(49.9% 0.123 147.7), rgb(37, 117, 55).
Aa
White text reads best on this color (5.70:1).
About this color
#257537 is a medium-dark, moderately saturated green. In OKLCH its lightness is 50%, its chroma 0.123 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jungle Green (#048243), ΔE 0.038 away. White text reads best on it, at 5.70:1.
| Hue family | Greens |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 3.67:1 |
| White text | 5.70:1 |
Values
| HEX | #257537 |
| RGB | rgb(37, 117, 55) |
| HSL | hsl(134, 52%, 30%) |
| OKLCH | oklch(49.9% 0.123 147.7) |
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 #257537 | 5.70:1 | AA | Lc -83.5 | Fine for body text |
| Black text on #257537 | 3.67:1 | AA large text | Lc 25.9 | Dividers and decoration only |
| #257537 text on white | 5.70:1 | AA | Lc 78.2 | Fine for body text |
| #257537 text on black | 3.67:1 | AA large text | Lc -23.6 | 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
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E3EDE3
oklch(93.6% 0.017 145.4)
-
Step 200
200
#CBDFCD
oklch(88.4% 0.032 148.2)
-
Step 300
300
#A8CCAB
oklch(81% 0.06 147.3)
-
Step 400
400
#77B17F
oklch(70.7% 0.094 148)
-
Step 500
500
#519D5E
oklch(63.1% 0.121 147.8)
-
Step 600
600
#318743
oklch(55.5% 0.131 147.6)
-
Step 700
700 (this color)
#257537
oklch(49.9% 0.123 147.7)
-
Step 800
800
#1F5D2C
oklch(42.6% 0.101 147.6)
-
Step 900
900
#204D28
oklch(37.8% 0.08 147.6)
-
Step 950
950
#142D18
oklch(27% 0.05 147.7)
#257537 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) | #766B32 | 0.096 |
| Deuteranopia (no green cones) | #6C643B | 0.095 |
| Tritanopia (no blue cones) | #097267 | 0.072 |
| Achromatopsia (no color) | #666666 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #257537
#257537
oklch(49.9% 0.123 147.7)
- #874686
#874686
oklch(49.8% 0.123 327.8)
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 #257537, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.038
- Tree Green #2A7E19 ΔE 0.044
- Dark Olive Green #556B2F ΔE 0.051
- Dark Grass Green #388004 ΔE 0.056
- Camo Green #526525 ΔE 0.058
- Green #008000 ΔE 0.060
- Camouflage Green #4B6113 ΔE 0.063
- Dark Moss Green #606C38 ΔE 0.066
Use #257537 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.