#257D56
Closest named color: Jungle Green (#048243). oklch(52.7% 0.103 160), rgb(37, 125, 86).
Aa
White text reads best on this color (5.06:1).
About this color
#257D56 is a medium-dark, moderately saturated green. In OKLCH its lightness is 53%, its chroma 0.103 and its hue 160°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jungle Green (#048243), ΔE 0.037 away. White text reads best on it, at 5.06:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.103) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 4.14:1 |
| White text | 5.06:1 |
Values
| HEX | #257D56 |
| RGB | rgb(37, 125, 86) |
| HSL | hsl(153, 54%, 32%) |
| OKLCH | oklch(52.7% 0.103 160) |
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 #257D56 | 5.06:1 | AA | Lc -80.0 | Fine for body text |
| Black text on #257D56 | 4.14:1 | AA large text | Lc 29.4 | Dividers and decoration only |
| #257D56 text on white | 5.06:1 | AA | Lc 74.6 | Content text, not long reading |
| #257D56 text on black | 4.14:1 | AA large text | Lc -27.1 | 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 600.
-
Step 50
50
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3EDE7
oklch(93.7% 0.013 159.9)
-
Step 200
200
#CBDFD3
oklch(88.5% 0.027 159.5)
-
Step 300
300
#A8CAB6
oklch(80.8% 0.046 159.4)
-
Step 400
400
#77AF91
oklch(70.7% 0.074 160.3)
-
Step 500
500
#509B76
oklch(63.1% 0.095 160.5)
-
Step 600
600 (this color)
#257D56
oklch(52.7% 0.103 160)
-
Step 700
700
#21714D
oklch(49.1% 0.096 159.7)
-
Step 800
800
#1E5C40
oklch(42.7% 0.079 160.4)
-
Step 900
900
#1F4C36
oklch(37.8% 0.063 159.9)
-
Step 950
950
#142C20
oklch(26.9% 0.038 160.6)
#257D56 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) | #7B7354 | 0.097 |
| Deuteranopia (no green cones) | #706B59 | 0.095 |
| Tritanopia (no blue cones) | #007C73 | 0.045 |
| Achromatopsia (no color) | #6E6E6E | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #257D56
#257D56
oklch(52.7% 0.103 160)
- #92527E
#92527E
oklch(52.8% 0.103 339.9)
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 #257D56, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.037
- Sea Green #2E8B57 ΔE 0.045
- Dark Sage #598556 ΔE 0.055
- Bluegreen #017A79 ΔE 0.058
- Viridian #1E9167 ΔE 0.059
- Dark Aquamarine #017371 ΔE 0.061
- Teal #008080 ΔE 0.061
- Military Green #667C3E ΔE 0.065
Use #257D56 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.